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L30030 6/03 PLC, PLC Plus and PLC Select Trailer ABS Installation/Service Manual Innovative Vehicle Technology PLC4Trucks $7.00

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Page 1: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

L300306/03

PLC, PLC Plus and PLC Select Trailer ABS

Installation/Service Manual

Innovative Vehicle Technology

PLC4Trucks $7.00

Page 2: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

Technical Serviceand

Engineering Support

In the U.S., please call:

Brake Systems DivisionWorld Headquarters

1-800-643-2374 (Press 2)

In Canada, please call

Brake Systems DivisionHaldex, Limited1-800-267-9247

Page 3: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC SelectTable of Contents

Table of Contents........................................ 1General Operation………………….…..... 2-3Sensor Block Installation…………............ 4Exciter Ring Installation...........……............ 5Wheel Speed Sensor Installation............... 6-12ABS System Plumbing....…………............ 13-18PLC Family Application....…………...........19PLC Select..........…………........................ 20

- Hardware- Electrical Wiring- Installation Test- Road Test- Troubleshooting/Diagnostics - PLC Select

PLC....................................………............ 32- Hardware- Electrical Wiring- Installation Test- Road Test- Troubleshooting/Diagnostics - PLC

PLC Plus...............................………............ 47- Hardware- Electrical Wiring- Installation Test- Road Test- Troubleshooting/Diagnostics - PLC Plus

Diagnostics..........................………............ 62- Blink Codes- PLC Info Center- PLC - PC Diagnostics- Diagnostic Fault Code List

InfoCenter..........................………............ 72

Contents:

1

Safety First!

Please follow your company’s safety procedure when you install this equipment. Besure that you understand all instructions before you begin.

Note: Remove all air pressure and electrical power from the brake system beforebeginning work.

Page 4: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

A 2S/1M system is the most popular configuration. This system is the least complexand simplest to install. There are 2 sensors and 1 ABS Modulator Relay Valve. Thesystem meets the minimum FMVSS-121 ABS requirements for semi-trailers anddollies, and is designed to work on 1, 2, or 3 axle trailers, or dollies.

A 2S/2M system is the least popular configuration. In most cases, there is no significantbenefit of a 2S/2M system over the 2S/1M SLH product. Consult Haldex Engineeringfor assistance in this area.

A 4S/2M system offers the best performance overall on multiple axle trailers and isrequired by FMVSS 121 for full trailers. The control is provided through 4 sensors and2 Modulator valves. The system has the flexibility to be installed as 4S/2MSide-By-Side control, with lift axle compatibility, or 4S/2M Axle-By-Axle control. Allconfigurations meet the requirements of FMVSS-121. The 4S/2M system can beinstalled on a variety of trailers. Full trailers, spread axle trailers, and multiple axletrailers are particularly well suited to this system.

General Operation

The PLC family of Trailer ABS, is the latest in a full line of Haldex trailer ABS systemsthat provide stability and control during braking by preventing wheel lock up. As withother ABS systems, PLC uses a combination of valves, sensors, exciter rings, and theElectronic Control Unit (ECU) working in union to maximize the control of a brakingtrailer.

When the ECU detects the rapid decrease in speed of a wheel about to lock up, itreleases the air pressure from the brake chambers of the affected wheel via one or twomodulator valves. The release of air from the chambers prevents the wheels fromlocking up and ensures vehicle stability. As soon as the wheels begin to rotate again,the ECU signals the modulator valve(s) to reapply the pressure in the affected brakechambers to maximize brake effort. If the condition that caused the lock up remains,the cycle is repeated until either the vehicle is stopped, or the brake has been released.This function is totally automatic and can occur up to six times per second.

ABS Basics:

Configurations:

2

General Operation

Page 5: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

Installation of the PLC systems can be completed in 4 easy steps:

1. Installation of wheel speed sensors and related hardware, if required (seepage 4 - 5).

2. Installation of ABS Relay Valve(s) and related hardware (see page 6 - 9,13 - 18).

3. Installation of electrical system (see pages 22, 34 - 38, 49 - 53) PLC,PLC Plus and PLC Select).

4. Final system checkout (see pages 23 - 25, 39 - 40, 54 - 55).

An important consideration of installing ABS is placement of the wheel sensors. This isespecially true when an ABS relay (modulator) valve controls multiple axles. Haldexrecommends that the sensors be placed on the axle that will lock first during a brakeapplication. Information on which axle that is mostly likely to lock is included in thisManual. Refer to (pages 6 - 11) for sensor placement on standard suspension configu-rations.

PLC, PLC Plus and PLC Select systems are available in 2 valve platforms: With apatented Haldex Full Function ABS (FFABS) Valve or an ABS Relay Valve. The differ-ence is that FFABS uses a single valve to provide the ABS function and control thespring (emergency) brakes as well as the service brakes (along with pressure protec-tion and anti-compounding features). The ABS Relay is a 2 valve system which re-quires a separate spring brake control valve such as the Haldex RT-4.

PLC PLus, and PLC system have two Select Low High software versions available.The SLH-A7 software is designed for multiple axle trailers. The SLH-A8 software isrequired on dollies and single axle trailers. Do not use SLH-A7 on dollies or singleaxle trailers.

Available Options:

Installation:

3

PLC, PLC Plus and PLC Select Trailer ABS all come standard with an Electronic HubOdometer. This feature can be accessed through a Haldex Info Center or through PCDiagnostics and the appropriate adapter.

In the Event of a Malfunction:

In the event of a failure in the permanent power circuit, the system will receive power fromthe stoplight circuit and work normally. If the power fails in both circuits, the system re-verts to a standard braking system. Refer to the Troubleshooting section of this manualon pages 26 - 31, 41 - 46, 56 - 61 and the diagnostics section on (pages 62 - 71).

General Operation

Page 6: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

CL± 2.5°

3 O'clock9 O'clock

.156 ± .031"

± 2.5°LC

.156 ± .031"

Sensor Block Installation:

The clearance between block and exciter ring should be 0.156 ± .031”. Any deviationfrom this clearance as a result of hub exciter ring position must be approved by thesensor manufacturer. The radial clocking position should be between 9 and 3 O’clocksee Figure 1A. While the ABS performance is not affected with the sensor located inthe lower half of the axle, the structural integrity of the axle could be compromised. Thesensor block should not interfere with any wheel end hardware.

In general, the position of the wheel speed sensor center axis to the exciter ring surfaceshould be as close as possible to a 90° angle in both directions (see Figure 1B).Deviation will result in a reduction of the wheel speed sensor signal output.

The sensor block must be mounted to provide adequate sensor to exciter ring contact.When the sensor is pushed against the exciter ring, the centerline of the sensor shouldbe no more than .080” above or .080” below the centerline of the exciter teeth (seeFigure 1C).

Note: The sensor block is generally welded to the axle. Refer to axlemanufacturer’s manual to insure that welding won’t affect structural integrity.

Sensor Block Installation

No more than .080”off center

No more than .080”off center

Sensor

Sensor

Centerline (CL)

Block

Block

Exciter Ring

Exciter Ring

Sensor Block;allowable placement

Axle Figure 1

A

BC

4

Centerline (CL)

Sensor Block

Sensor Clip

Sensor

Page 7: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

Exciter Ring Installation:

1. Heat the exciter ring uniformly to approximate 350° F.2. Place the exciter ring on the machined area of the axle hub (see figure 3).3. Make sure the exciter ring fits squarely onto the machined surface of the hub.4. When the exciter ring cools, it will shrink fit on the hub.5. Make sure the exciter ring fits tightly onto the machined area and does not slip.

Exciter Ring Installation

Exciter Ring Machining:

1. Remove the hub and drum assemblies of all wheel ends.2. Ensure the hub has a seal bore of 6.00” inches or less (see figure 2).3. Machine area to the dimensions indicated in Figure 2.

Figure 2.03 X 15° Chamfer

.530

.470

6.00 Dia.MaximumSeal Bore

125

125

6.5016.499 Dia.

R .06

Figure 3

Press the exciter ring right to theshoulder allowing no gaps

Hub

Exciter Ring

5

100 ToothExciter Ring

Page 8: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

Sensors should be installed on the axle that locks first when the trailer is loaded.Recommended locations are shown below. The 1A sensor should be installed on thecurb side, and the 1B sensor should be installed on the road side of the trailer.Make sure sensors are pushed firmly against the exciter rings.

2S/1M Configurations:

Wheel Speed Sensor Installation

Dollies and Single Axle Trailers:

Multi- Axle Trailers

Use 6 port valve Use 2 port valve

Spring Suspension Spring Suspension

Air Suspension Air Suspension

Use 4 or 6 port Valve

FittingSensor

ECU w/ABS Valve

King Pin

Use 2 port valve

6

Page 9: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

2S/2M Configurations:

Sensors should be installed on the axle that locks first when the trailer is loaded. Recommended locations are shown below. The 2A sensor should be installed on thecurb side, and the 2B sensor should be installed on the road side of the trailer.Make sure sensors are pushed firmly against the exciter rings.

Note:The 2S/2M configuration does not offer any meaningful performance benefit over a2S/1M SLH-A7 configuration, and is not a preferred system. To obtain additional performance beyond a 2S/1M configuration, Haldex recommends the use of a4S/2M system.

Multi-Axle Trailers:

7

King Pin

ValveECU w/Valve

Sensor

Wheel Speed Sensor Installation

Page 10: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

The placement of the sensors at the wheel end is an important consideration. Incorrectinstallation of the sensors and exciters will result in poor or no ABS operation. Sensorsconnected to yellow leads must sense the wheel controlled by the valve connected tothe yellow valve lead. Similarly, sensors connected to blue leads must sense the wheelcontrolled by the valve connected to the blue lead.

In the case of a 4S/2M Axle-By-Axle configuration, the blue modulator lead must beconnected to the valve that controls the front axle wheel ends and is sensed by the bluesensors (3A and 2A). The yellow valve cable lead must be connected to the valve thatcontrols the rear axle wheel ends and is sensed by the yellow sensors (3B and 2B).The schematic below shows the proper placement of the sensor and valve leads (theking pin indicates the front of the trailer). Make sure sensors are pushed firmlyagainst the exciter rings.

4S/2M Axle-by-Axle Configurations:

Multi-Axle Trailers:Wrong WrongCorrect

8

Wheel Speed Sensor Installation

King Pin

ValveECU w/Valve

Sensor

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PLC, PLC Plus, & PLC SelectWheel Speed Sensor Installation

4S/2M Side-by-Side Configurations:

The placement of the sensors at the wheel end is an important consideration. Incorrectinstallation of the sensors and exciters will result in poor or no ABS operation. Sensorsconnected to yellow leads must sense the wheel controlled by the valve connected tothe yellow valve lead. Similarly, sensors connected to blue leads must sense the wheelcontrolled by the valve connected to the blue lead.

In the case of a 4S/2M Side-By-Side configuration, the blue modulator lead must beconnected to the valve that controls the curb side wheel ends and are sensed by theblue sensors (3A and 2A). The yellow valve cable lead must be connected to the valvethat controls the road side wheel ends and are sensed by the yellow sensors (3B and2B). The schematic below shows proper placement of the sensor and valve leads (kingpin indicates the front of the trailer). Make sure sensors are pushed firmly against theexciter rings.

Multi-Axle Trailers:

Wrong WrongCorrect

9

King Pin

ValveECU w/Valve

Sensor

Page 12: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

On 4S/2M Axle-By-Axle installations, sensed wheels (wheels with ABS sensors) can notbe lift axles. Lifting a sensed axle in this configuration will create an ABS fault. ABSoperation will then be suspended until the power has been cycled and all sensedwheels are again rolling on the road surface.

Note:Indirectly controlled axles (axles without sensors, but controlled by ABS valves) may belifted regardless of the configuration.

4S/2M Axle-by-Axle Lift Control:

Lift Axle

Wrong Wrong

Correct Correct

Lift Axle

Lift Axle Lift Axle

2B

3A3B

2B

3B

2A 2B

3B3A

2A

3A

2A

2B

3B

2A

3A

10

Wheel Speed Sensor Installation

Page 13: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC SelectWheel Speed Sensor Installation

On 4S/2M Side-By-Side installations, the sensed wheels “3A” and “3B” can be used ona lift axle. The sensed wheels “2A” and “2B” must remain on the ground at alltimes.

Attention:The trailer has to roll over 6 MPH with the lift axle UP, after each ignition key “on” cyclein order for the ABS system to recognize that a lift axle is present. Once this is done, theaxle can be raised or lowered without issue for that ignition “on” cycle. If the trailer rollsover 6 MPH with the lift axle down after an ignition “on” cycle, lifting the axle will causean ABS fault to occur.

Note:Indirectly controlled axles (axles without sensors, but controlled by ABS valves)may be lifted regardless of the configuration.

Lift AxleLift Axle

Lift Axle Lift Axle

2A 2A

2A

2B

2B

2B 2B

3A 3A

3A 3A

3B3B

3B 3B

Wrong

Correct Correct

Correct

2A

4S/2M Side-by-Side Lift Control:

11

Page 14: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC SelectWheel Speed Sensor Installation

1. Insert the sensor clip into the sensor block.2. Insert the sensor into the sensor clip and push until it is firmly against the exciter

ring. (First grease the sensor with a lithium based grease.)3. Route all sensor cables through vacant bolt holes, etc. Use a grommet or corrugated tubing when the cable is touching sharp edges.4. Attach cable ties as needed to ensure the cable is secured.5. Typical routing of cable is along the brake chamber air hose (see detail above).6. Use sensor cable clip (highly recommended) or double tie straps when attaching the

cables to the air lines.7. Sensor cable clip or double tie straps should be no closer than 6” and no farther then 12” inches apart.

Use caution when attaching tie straps to air lines. Over tightening can cause acable failure down the road.

Cable Routing:

Tie strap

BlockClip

Sensor

Push sensorfirmly againstexciter

Lightly greasethe sensorwith a lithiumbasedgrease. UseDow CorningMolycoatCU7439 orequivalent.

3-Way Clip(optional)

Sensor cable clip orDouble tie strapsrecommended

Tie strap

4” Diameter Loop

4” Diameter Loops

Long (dog bone) cable

Leave some slack in cable to accommodatemovement between components. Bundleexcess cable with tie straps as shown below.

Don’t over tighten tie straps.This could cause a cable failure,especially where attached to airlines, since air lines flex.

6-12”

12

3-WayClip

Sensor Cable Clip

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PLC, PLC Plus, & PLC Select

13

ABS System Plumbing

1. Install fittings into valve. Sealant is not required on plastic threads or on fittings thatgo into plastic. Do not use teflon tape on fittings. It can break off and contaminatethe air system.

2. For plastic ports, hand tighten fittings then rotate 1 to 1 1/2 additional turns. The maximum torque valve allowed is 210 in-lb.3. Install valve nipple into reservoir port. Rotate valve by hand until resistance is felt.4. Using a wrench on the nipple hex, continue tightening valve to the correct valve

orientation (see detail below).5. Attach hoses to appropriate brake chambers. Use thread sealant sparingly on all

fittings (Loctite PST565 or similar).

2S/1M FFABS System Plumbing:

Emergency/Supply

Service/Control

All ports are 3/8” except nipple (1/2” or 3/4”). Torque to 210 in. lb. max (plastic threads)

Solenoid

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Reservoir Port

Supply (Emergency)

Spring BrakeDelivery (2 places)

Service BrakeDelivery (4 places)Control

PLC Select(Alternate ECU)

(with serviceable filter)

(with serviceable filter)

Jam Nut(torque 30 ft.lb.)

Page 16: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

14

ABS System Plumbing

2S/1M ABS Relay System Plumbing:

Service/Control

Emergency/Supply

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Supply (Emergency)

Spring BrakeDelivery (4 places)

Service BrakeDelivery (6 places)

Solenoid

Control

Control

Supply (Emergency)

1. Apply sealant sparingly to fittings, or use fittings with pre-applied sealant, and installinto valve. Do not use teflon tape on fittings. It can break off and contaminate theair system.

2. Install heavy wall nipple into valve reservoir port. Thread nipple into reservoir. Rotatevalve by hand until resistance is felt.

3. Using a wrench on the nipple hex, continue tightening valve to the correct valveorientation (see detail below).

4. Attach hoses to appropriate brake chambers. Use thread sealant sparingly on allfittings (Loctite PST565 or similar).

PLC Select(Alternate ECU)

When an ABS Relay Valve is used,a Spring Brake Control Valve is requiredsuch as a Haldex RT4 Valve.

Page 17: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC SelectABS System Plumbing

2S/2M ABS Relay System Plumbing:

Emergency/Supply

Service/Control

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Solenoid

Control

Service BrakeDelivery (2 places)

Spring BrakeDelivery (4 places)

ControlSupply(Emergency)

1. Apply sealant sparingly to fittings, or use fittings with pre-applied sealant, and installinto valve. Do not use teflon tape on fittings. It can break off and contaminate theair system.

2. Install heavy wall nipple into valve reservoir port. Thread nipple into reservoir. Rotatevalve by hand until resistance is felt.

3. Using a wrench on the nipple hex, continue tightening valve to the correct valveorientation (see detail below).

4. Attach hoses to appropriate brake chambers. Use thread sealant sparingly on allfittings (Loctite PST565 or similar).

15

When an ABS Relay Valve is used,a Spring Brake Control Valve is requiredsuch as a Haldex RT4 Valve.

Page 18: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

1. Apply sealant sparingly to fittings, or use fittings with pre-applied sealant, and installinto valve. Do not use teflon tape on fittings. It can break off and contaminate theair system.

2. Install heavy wall nipple into valve reservoir port. Thread nipple into reservoir. Rotatevalve by hand until resistance is felt.

3. Using a wrench on the nipple hex, continue tightening valve to the correct valveorientation (see detail below).

4. Attach hoses to appropriate brake chambers. Use thread sealant sparingly on allfittings (Loctite PST565 or similar).

Emergency/Supply

Service/Control

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Solenoid

Control

Service BrakeDelivery (2 places)

Reservoir Port

Service Brake Delivery(2 places)

Spring Brake Delivery(2 places)

Supply/Emergency(with Serviceable Filter)Control

(with Serviceable Filter)

Solenoid

16

4S/2M Axle-By-Axle FFABS System Plumbing:

ABS System Plumbing

Jam Nut(torque 30 ft.-lb.)

Page 19: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC SelectABS System Plumbing

1. Apply sealant sparingly to fittings, or use fittings with pre-applied sealant, and installinto valve. Do not use teflon tape on fittings. It can break off and contaminate theair system.

2. Install heavy wall nipple into valve reservoir port. Thread nipple into reservoir. Rotatevalve by hand until resistance is felt.

3. Using a wrench on the nipple hex, continue tightening valve to the correct valveorientation (see detail below).

4. Attach hoses to appropriate brake chambers. Use thread sealant sparingly on allfittings (Loctite PST565 or similar).

Emergency/Supply

Service/Control

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Solenoid

Control

Service BrakeDelivery (2 places)

Control

Spring BrakeDelivery (4 Places)

Supply(Emergency)

17

4S/2M Axle-By-Axle Relay System Plumbing:

When an ABS Relay Valve is used,a Spring Brake Control Valve is requiredsuch as a Haldex RT4 Valve.

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PLC, PLC Plus, & PLC Select

4S/2M Side-By-Side FFABS System Plumbing:

1. Apply sealant to fittings, or use fittings with pre-applied sealant, and install into valve.Do not use teflon tape on fittings. It can break off and contaminate the air system.

2. Install heavy wall nipple into valve reservoir port. Thread nipple into reservoir. Rotatevalve by hand until resistance is felt.

3. Using a wrench on the nipple hex, continue tightening valve to the correct valveorientation (see detail below).

4. Attach hoses to appropriate brake chambers. Use thread sealant on all fittings(Loctite PST565 or similar).

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

ECU

Service Brake Delivery (2 places)

SolenoidSolenoid

Controlwith Serviceable

Filter

Control Reservoir Port

Service Brake Delivery(2 places)

Spring Brake Delivery(2 places)

Supply/Emergencywith Serviceable Filter

Emergency/Supply

Service/Control

18

ABS System Plumbing

Note: This End Up

Tighten nipple(Torque 50 ft. lb.)

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PLC, PLC Plus, & PLC Select

Platform: Configurations: Application:

Tandem Axle Trailers

Tri-axle Trailers

Single Axle Trailers

Tandem Axle Trailers

Tri-axle Trailers

Single Axle Dollies

Tandem Axle Dollies

Single Axle Trailers

Tandem Axle Trailers

Tri-axle Trailers

Single Axle Dollies

Tandem Axle Dollies

PLC Select

PLC

PLC Plus

2S/1M

2S/1M, 2S/2M, 4S/2M

2S/1M, 2S/2M, 4S/2M Plus Aux. Functions

19

Feature rich designencompass all theflexibility of the PLCplatform with added controland monitoring capabilitiesfor a variety of auxiliaryfunctions to providepreventive maintence,warning, and operationalbenefits.

Self-configuring design,from 2S/1M, 2S/2M, and4S/2M, offers a flexible ABSsolution for all applications witha single ECU.

Most compact packagewith a No-Loom designoffers the best in ABSsolution for 2S/1M Applications.

PLC Family Application

Single Axle Trailers

Single Axle Dollies

Tandem Axle Dollies

Page 22: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

PLC Select ABS

20

PLC Select ABS Information

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PLC, PLC Plus, & PLC SelectHareware - PLC Select

21

ABS Relay Valve FFABS Valve

7.1” Swing Radius

7.1” Swing Radius

3-Way Clip (Optional)

Sensor

ABS Lamp

Power CableTie Strap

Sensor Cable Clip

Page 24: PLC, PLC Plus and PLC Select Trailer ABS Installation ...€¦ · PLC, PLC Plus, & PLC Select Installation of the PLC systems can be completed in 4 easy steps: 1. Installation of

PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

2S/1M System Wiring - PLC Select2S/1M System Wiring:

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

1B

1A

7 Way Wiring

SensorConnection

Legend

PowerConnection

ABS Light (Mounted on road side oftrailer, at the rear.)*

Power Connector Pins

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

Sensor Cable

Valve Cable

Power Cable

SensorConnection

22

SAE J560

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9” min.to 23” inches max.

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PLC, PLC Plus, & PLC Select

Wheel SpeedSensor (S1B) (Road Side)

Wheel SpeedSensor (S1A) (Curb Side)

Modulator ValveSolenoid Cable

Power Connection

ECU

Installation Test - PLC Select:

23

ABS Road Test - PLC Select

This step will ensure the ABS system (less power cable and warning lamp) is functioning properly, before the bogey is assembled to the trailer.

Test Equipment:

12 VDC power source (do not use a battery charger), and interface cable with a Packard 5pin male power connector and an ABS test light attached, and shop air.

Procedure:1. Charge the supply and service air systems.2. Connect test power cable to wiring harness power lead.3. ABS valve should “blow down” first. You will hear a brief shot of air from the valve.4. The ABS light should illuminate for about 3 seconds and then turn off.

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PLC, PLC Plus, & PLC SelectProduction Testing - PLC Select

Test Equipment:12 VDC power source (do not use a battery charger) and shop air.

Procedure:1. Charge the supply and service air system.2. Apply power source to 7-way receptacle.3. The ABS Valve should “blow down” first. You will hear a brief shot of air from the valve.4. The ABS light should illuminate for about 3 seconds and then turn off.5. If desired, information such as the name of the Inspector, the date inspected, or the Trailer

VIN can be stored in the ABS ECU using a PC, in conjunction with Haldex’s PC Diagnosticssoftware.

If ABS light never illuminates, or stays illuminatedduring the ABS check, refer to the Troubleshoot-ing Section of this Manual (see pages 30 - 31).

End of Line ABS Check:

Note:

24

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PLC, PLC Plus, & PLC Select

1. Disconnect power from the ABS system before testing or making any repairs.2. Most ABS problems are related to: A) Cut, corroded, or abraded wires. B) Corroded

connectors and terminals. C) Connector terminals not latched or seated correctly tomating assemblies. D) Excessive sensor air gap, sensor clip retention, or wheelbearing end play.

3. After making any repairs go to the “Diagnostic Tools” section of this Manual (seepage 25 - 30) to confirm that the Fault is corrected. If a Fault # 11, 12, 21, 22, 41 or42 has occurred, and has been corrected, the code will read an “07”. The trailermust then be driven above 6 mph for the ABS warning light to turn OFF.

Notes:

Road Test - PLC Select:

To check the operation of the entire ABS system, connect a tractor to the trailer andcharge the trailer’s air tanks. Turn on the ignition key and ensure that the warning lightcomes on briefly, then goes out. Pull the trailer at a speed above 6 mph and make abrake application until the tractor-trailer has come to a complete stop. Verify that theABS light has remained OFF. If the light remains OFF, the system is functioningproperly. If the ABS system detected an error during the stop, the warning light will beON. If the light never comes ON when the ignition is turned ON, then refer to the“Troubleshooting - No ABS Warning Light Illumination” section of this Manual (see page31). If the light stays ON with the ignition key on, refer to the “Troubleshooting -ABS Warning Light Illuminates; Stays On Permanently” section of this Manual (seepage 30).

25

Road Test - PLC Select

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC Select

The PLC Info Center has a screen that can display ABS fault codesplus a number of other items. The PLC Info Center only needs to beconnected to vehicle power and ground. (A diagnostic interface cableis available to accommodate this connection.)Available functions include:1. View active fault codes (2 digit code) and fault occurrance count.2. View stored fault codes and fault occurrance count.3. Clear stored fault codes.4. View wheel speed sensor identification corresponding to each individual wheel when a wheel is rotated.5. View sensor and valve configuration code.6. View ABS ECU type and serial number.7. Energize individual valve solenoids.8. Odometer

A. View Odometer, Tire Scale Factor, Service Interval and Trip Distance.B. Set Odometer units (miles or kilometers), Scale Factor and Service Interval.

9. Monitor and control trailer auxiliary devices such as: lift axle, dome light, low reservoir, door ajar, overload, etc. (when used with PLC Plus ABS)

PLC PC Diagnostics displays the mostinformation. Fuunctions available include:1. View ABS ECU Part Number.2. Save ABS diagnostic results for a print out of test verification.3. Read/ Write data internally to ABS ECU.

Diagnostic Tools - PLC Select:

PLC Info Center:

ABS fault codes can be accessed using the ABS Lightwithout the use of any other tools. The Blink code “Simple Fault Mode” diagnostics canbe activated by pressing on the brake pedal to activate the trailer brakes and switchingignition power on, off, then back on in 1 second intervals. See Blink Code informationon Pages 63 - 66.

Blink Codes:

PLC PC Diagnostics:DiagnosticInterfaceCable

Note: PLC Info Center and PLC PC Diagnostics are not compatible with oldergenerations of ABS manufactured prior to March 2001.

J1708/ PLCAdapter

PLC Interface CableABS PC DiagnosticSoftware

9 to 25Way Cable

26

Minimum Requirements: Pentium II,32 MB Ram, 233 MHz, Windows 95B,RS232 9 pin com port

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC Select

27

This indicates that the system is working OK.1. “00” with the trailer moving or “07” with the trailer not moving indicates there are no

active faults.2. “A4”, “A7”, and “A8” are configuration codes and may or may not be present.3. “C0” indicates that the ABS is a 2S/1M system.

Troubleshooting - PLC Select:

Indicates that the output of a wheel speed sensor of a moving trailer is insufficient.1. The most likely reason for this is the gap between one sensor and the exciter is too

great. Measure the AC voltage at the sensor in question while rotating the wheel at arate of about 1 revolution every two seconds. The output should be at least 200millivolts. If the output is less than 200 millivolts, try pushing in the sensor until ittouches the exciter. If this doesn’t correct the problem, then replace the sensor.

2. If the gap on both sensors is too great, you may not get a fault. If the ECU isn’tgetting voltage from any sensor it will assume that the trailer is not moving, evenwhen it is. If you suspect this is the case, check each wheel separately for sensoroutput.

Code 11, or 12 (Occurs when the trailer is moving):

This Indicates that a wheel speed sensor or its wiring has a short or open circuit.1. Disconnect the relevant sensor connector from the sensor and measure the resistance between the two pins in the sensor connector housing. The ohmmeter

reading for the sensor should be between 980 and 2350 ohms. The sensor shouldbe replaced if the reading is outside of these limits.

2. The connections and sensor cable can be disconnected at the ECU to check foropen or shorts. If there is a sensor extension cable attached to the sensor, test thisseparately for continuity. Replace any defective hardware and retest.

Code 01, or 02:

Code 00, 07, A7, or C0:

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PLC, PLC Plus, & PLC Select

Indicates that a solenoid or its cable has an open circuit internally.1. The most likely causes include: a bad solenoid or a loose solenoid connection.

Disconnect the solenoid and check the resistance at the solenoid pins. Readingsacross the two bottom pins should be between 7 and 9 ohms. Check the femaleterminals on the connector for excessive pin spread or corrosion. Replace defectivehardware as required and retest.

2. Additional possible causes are: a bad solenoid cable or loose connection. Removethe Valve Cable from the ECU and check for continuity. Repair or replace.

Code 21, or 22 (Occurs when the trailer is moving):Indicates that there is an intermittent loss of a sensor signal when the trailer is travelingdown the road. This type of fault is often difficult to diagnose.1. The most likely causes include: a broken sensor retaining clip, a damaged or mis-

aligned exciter, or excessive wheel bearing end play*. Check components at theaffected wheel.

2. Other possible causes are: a loose, damaged, or corroded sensor electrical connection or a break in the cable. Check the connectors for these items. If the

connections look good, then look for visual external damage to the cable. Replaceany suspect components and retest.

* Ensure that the wheel bearings are torqued per the manufacture’s specification.

Code 41 (Occurs when the trailer is moving):Indicates that a wheel is slow to come back up to speed when ABS releases the brakeduring an ABS event.1. The most likely causes include: a dragging brake, a pinched or kinked delivery hose,

or defective modulator valve, or an unequal number of exciter teeth between wheels.Check the brakes to ensure that they release completely. Look for visual externaldamage to the delivery hoses or delivery tubing. Replace any defective hardwareand retest.

Code 61, or 67:

Troubleshooting - PLC Select:

28

Troubleshooting - PLC Select

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC Select

29

Indicates that ABS voltage is below about 8.5 volts. This fault will disappear when thevoltage exceeds 8.5 volts, without the ignition being recycled.1. The most likely causes include: a damaged or corroded wire, terminal, or splice in

the ABS power supply circuit. Check the voltage drop between the SAE J560 7-wayand the ABS ECU. The voltage drop should not exceed 2 volts. Remove the powercable from the ECU and test for continuity with power disconnected.

2. If power is coming from somewhere other than the tractor; make sure the testerbattery is fully charged or the voltage converter has adequate DC voltage and currentcapacity. Do NOT use a battery charger.

3. Another possible cause is undersized wiring. Recommended vehicle harness wiresizes are 10 gauge for power (permanent and stoplight) and 8 gauge for ground.

Code 71, or 77:Indicates that a solenoid or its cable has a short circuit to ground (negative).1. The most likely causes include: a damaged cable or solenoid. An example of this is

a worn or chafed cable that has exposed wires contacting the trailer. Disconnect thesolenoid connector and check for continuity between each solenoid terminal andtrailer ground. Next remove the valve cable from the ECU and check for continuitybetween pins and trailer ground. If the resistance is less than 10M ohms in anycase, replace suspect hardware and retest. If the code still exists, than the ECU islikely defective.

Code 81, or 87:Indicates that the solenoid or its cable has a short circuit to B+ (positive 12 volts).1. The most likely cause is a damaged cable or solenoid. Remove the valve cable

from the ECU and test for continuity and trailer B+, with power disconnected. If theresistance is less than 10M ohms in any case, replace suspect hardware and retest.If the code still exists, then the ECU is likely defective.

Code 90:

Troubleshooting - PLC Select:

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC Select

Code 92:Indicates that the ABS voltage is above 16.5 volts.1. The most likely cause is a malfunctioning voltage regulator or tester power supply

set too high. If this occurs while troubleshooting the trailer without a tractor connected, verify that the tester power supply is below 16 volts before proceeding.

Code 80, 93, 99, E0-E9, or EA-EF:Indicates that the ECU is likely defective.1. Replace the ECU and retest to confirm problem is resolved.

Code CA, CC:1. A “CA” code is an invitation to “clear all” stored faults stored in memory. Note that if

dynamic faults are stored in memory, the ABS Warning Lamp may remain ON untilthe trailer is driven above 6 mph. If the Lamp remains ON, the fault still exist. Cor-rect the problem and retest, then clear stored faults from memory.

2. A “CC” code will be displayed during the third consecutive time that a “Clear All” isattempted. This is an invitation to “Clear Configuration” and should be avoided.This is only used to reconfigure the ABS to a 2S/1M after it has been configured to a2S/2M or 4S/2M. If a “CC” is displayed, power the system down and power backup.

ABS Warning Light Stays On Permanently:

Upon power up of the ABS system, the ABS warning light should come ON for about 3seconds, then go OFF. If the light stays ON, it may be caused by improper light wiring,or by a fault in the ABS system.1. Check for diagnostic fault codes. If anything other than an “07” is displayed, review

the “Troubleshooting” section of this Manual for possible solutions. After the problemis repaired, clear all stored faults.

2. If an “07” is displayed but there was an, 11, 12, 21, 22, or 41 stored in memory, thencorrect the problem and drive. The trailer needs to be driven above 6 mph to get theABS light to turn OFF.

3. If there are no stored faults and an “07” is displayed, and the ABS light is still ON,then the ABS light is miswired. Remove the main wire harness 5 pin connector atthe ECU and verify continuity between pin “D” and the trailer light. The remaininglight wire must be grounded to the trailer chassis or connected to the SAE J560

7-way connector ground wire. Check for continuity between the ABS light wire andground. Repair as necessary and retest.

Troubleshooting - PLC Select:

30

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC Select

31

1. Check the bulb to verify that it is functional. If not functional, replace it.2. Verify that there is power to the ECU. Disconnect the main wire harness 5 pin

connector and check for B+ (positive power) between either pin A or pin B andground, (pin A requires a brake application, as it is stoplight power). The voltagedrop between the SAE J560 7-way and the ECU should not exceed 2 volts. If nopower exists at either pin, then check continuity from these pins to the SAE J560 7-way connector red and blue circuits. Make necessary repairs and retest.

3. If the problem is still present, remove the main wire harness 5 pin connector at theECU and verify continuity between pin “D” and the light. The remaining light wiremust be grounded to the trailer chassis or connected to the SAE J560 7-way

connector ground wire. Check for continuity between the ABS light wire and ground.Repair as necessary and retest.

No ABS Warning Light Illumination:

Troubleshooting - PLC Select:

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PLC, PLC Plus, & PLC Select

PLC ABS

32

PLC ABS Information

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PLC, PLC Plus, & PLC Select

*

Hardware - PLC ABS

33

ABS Relay Valve FFABS Valve

7.28” Swing Radius

7.28” Swing Radius

3-Way Clip(Optional)

Sensor

ABS LampPower Cable

Tie Strap

Clasp

PLC Loom

Sensor Cable Clip

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

Valve Cable

Power Cable

2S/1M System Wiring - PLC ABS:

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

1B

1A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Power Connector Pins

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

34

2S/1M System Wiring - PLC ABS

Sensor Cable

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

2S/2M System Wiring - PLC ABS

Valve Cable

Power Cable

2S/2M System Wiring - PLC ABS:

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

2B

2A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Power Connector Pins

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

35

Sensor Cable

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

Valve Cable

Power Cable

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

3A

2A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

36

Sensor Cable

3B

2B

Power Connector Pins

4S/2M Axle-By-Axle System Wiring - PLC ABS

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

4S/2M Side-By-Side System Wiring - PLC ABS

Valve Cable

Power Cable

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

3B

3A

7 Way WiringSensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

37

Sensor Cable

2B

2A

Power Connector Pins* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

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PLC, PLC Plus, & PLC Select

"click"

"click"

PLC ABS

38

Harness Connection - PLC ABS:

ECU

Clasp

Step #1Open the clasp by inserting ascrewdriver into the clip slotand prying forward.

Step #2Connect the wiring harness tothe ECU (listen for 2 “clicks”as the latches fall into place).

Step #3Close the clasp and lock into place.Band should completely cover the enlargedportion of the wiring harness overmold.

Step #4Slide the bail latch over the ears on the loom tocomplete the assembly.

Care must be taken when attaching the wiring harness to the ECU. The clasp and baillatch must be properly latched to ensure trouble-free ABS operation.

Bail Latch

Support Clasp

Harness Connetion - PLC ABS

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PLC, PLC Plus, & PLC SelectProduction Testing - PLC ABS

This step will ensure the ABS system (less power cable and warning lamp) is functioning properly, before the bogey is assembled to the trailer.

Test Equipment:

12 VDC power source (do not use a battery charger), and interface cable with a Packard 5pin male power connector and an ABS test light attached, and shop air.

Procedure:1. Charge the supply and service air systems.2. Connect test power cable to wiring harness power lead.3. ABS valves should “blow down” first. You will hear a brief shot of air for each valve; and each valve will only exhaust once: a. 2S/1M : The Red Channel will exhaust b. 2S/2M or 4S/2M : The Blue Channel will exhaust first, then the Yellow Channel 4. The ABS light should illuminate for about 3 seconds and then turn off.

Test Equipment:12 VDC power source (do not use a battery charger) and shop air.

Procedure:1. Charge the supply and service air system.2. Apply power source to 7-way receptacle.3. The ABS Valve(s) should “blow down” first. You will hear a brief shot of air for each

valve; and each valve will only exhaust once:a. 2S/1M: the Red Channel will exhaust.b. 2S/2M or 4S/2M : the Blue Channel will exhaust first, then the Yellow Channel.

4. The ABS light should illuminate for about 3 seconds and then turn off.5. If desired, information such as the name of the Inspector, the date inspected, or the

Trailer VIN can be stored in the ABS ECU using a PC, in conjunction with Haldex’sPC Diagnostics software (see page 41.)

If ABS light never illuminates, or stays illuminatedduring the ABS check, refer to the Troubleshoot-ing Section of this Manual (see page 42- 46).

Installation Test - PLC ABS:

End of Line ABS Check:

Note:

5 pin

39

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PLC, PLC Plus, & PLC SelectPL

C 1

9 pi

n c

onne

ctor

1. Disconnect power from the ABS system before testing or making any repairs.2. Most ABS problems are related to: A) Cut, corroded, or abraded wires. B) Corroded

connectors and terminals. C) Connector terminals not latched or seated correctly tomating assemblies. D) Excessive sensor air gap, sensor clip retention, or wheelbearing end play.

3. After making any repairs go to the “Diagnostic Tools” section of this Manual (seepage 41) to confirm that the Fault is corrected. If a Fault # 11 thru 16, 21 thru 26, or41 thru 43 has occurred, and has been corrected, the code will read an “07”. Thetrailer must then be driven above 6 mph for the ABS warning light to turn OFF.

Notes:

Road Test - PLC ABS:

Perm B+Sensor 2A HI

B+ Stop Light

Sensor 2A LOSensor 3A HISensor 2B HI (1A HI: 2S/1M)

Modulator Hold Yel (Red: 2S/1M) B- Permanent and Stop Light

Cab LampTrailer Lamp

Sensor 3A LOSensor 3B HI (1B HI: 2S/1M)

Sensor 2B LO (1A LO: 2S/1M)

Modulator Dump Yel (Red: 2S/1M)

Modulator Common Yel (Red: 2S/1M)Modulator Common Blue

Modulator Hold Blue

Modulator Dump BlueSensor 3B LO (1B LO: 2S/1M)

To check the operation of the entire ABS system, connect a tractor to the trailer andcharge the trailer’s air tanks. Turn on the ignition key and ensure that the warning lightcomes on briefly, then goes out. Pull the trailer at a speed above 6 mph and make abrake application until the tractor-trailer has come to a complete stop. Verify that theABS light has remained OFF. If the light remains OFF, the system is functioningproperly. If the ABS system detected an error during the stop, the warning light will beON. If the light never comes ON when the ignition is turned ON, then refer to the“Troubleshooting - No ABS Warning Light Illumination” section of this Manual see page46. If the light stays ON with the ignition key on, refer to the “Troubleshooting -ABS Warning Light Illuminates; Stays On Permanently” section of this Manual (seepage 45).

40

Road Test - PLC ABS

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC ABS

The PLC Info Center has a screen that can display ABS fault codesplus a number of other items. The PLC Info Center only needs to beconnected to vehicle power and ground. (A diagnostic interface cableis available to accommodate this connection.)Available functions include:1. View active fault codes (2 digit code) and fault occurrance count.2. View stored fault codes and fault occurrance count.3. Clear stored fault codes.4. View wheel speed sensor identification corresponding to each individual wheel when a wheel is rotated.5. View sensor and valve configuration code.6. View ABS ECU type and serial number.7. Energize individual valve solenoids.8. Odometer

A. View Odometer, Tire Scale Factor, Service Interval and Trip Distance.B. Set Odometer units (miles or kilometers), Scale Factor and Service Interval.

9. Monitor and control trailer auxiliary devices such as: lift axle, dome light, low reservoir, door ajar, overload, etc. (when used with PLC Plus ABS)

PLC PC Diagnostics displays the mostinformation. Functions available include:1. View ABS ECU Part Number.2. Save ABS diagnostic results for a print out of test verification.3. Read/ Write data internally to ABS ECU.

Diagnostic Tools - PLC ABS:

PLC Info Center:

ABS fault codes can be accessed using the ABS Lightwithout the use of any other tools. The Blink code “Simple Fault Mode” diagnostics canbe activated by pressing on the brake pedal to activate the trailer brakes and switchingignition power on, off, then back on in 1 second intervals. See Blink Code informationon Pages 63 - 66.

Blink Codes:

PLC PC Diagnostics:DiagnosticInterfaceCable

Note: PLC Info Center and PLC PC Diagnostics are not compatible with oldergenerations of ABS manufactured prior to March 2001.

J1708/ PLCAdapter

PLC Interface CableABS PC DiagnosticSoftware

9 to 25Way Cable

41

Minimum Requirements: Pentium II,32 MB Ram, 233 MHz, Windows 95B,RS232 9 pin com port

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC ABS

This indicates that the system is working OK.1. “00” with the trailer moving or “07” with the trailer not moving indicates there are no

active faults.2. “A4” ,“A7”, and “A8” are configuration codes and may or may not be present.3. “C0”, “C1”, or “C2” indicate that the ABS is a 2S/1M, 2S/2M or 4S/2M system.

Troubleshooting - PLC ABS:

Indicates that the output of a wheel speed sensor of a moving trailer is insufficient.1. The most likely reason for this is the gap between one sensor and the exciter is too

great. Measure the AC voltage at the sensor in question while rotating the wheel at arate of about 1 revolution every two seconds. The output should be at least 200millivolts. If the output is less than 200 millivolts, try pushing in the sensor until ittouches the exciter. If this doesn’t correct the problem, then replace the sensor.

2. If the gap on all sensors is too great, you may not get a fault. If the ECU isn’t gettingvoltage from any sensor it will assume that the trailer is not moving, even when it is. Ifyou suspect this is the case, check each wheel separately for sensor output.

Code 11, 12, 13, 14, 15, or 16 (Occurs when the trailer is moving):

This Indicates that a wheel speed sensor or its wiring has a short or open circuit.1. Disconnect the relevant sensor connector from the sensor and measure the resistance between the two pins in the sensor connector housing. The ohmmeter

reading for the sensor should be between 980 and 2350 ohms. The sensor shouldbe replaced if the reading is outside of the limits.

2. The main wire harness 19 pin connector can be disconnected at the ECU to checkfor open or shorts in the sensor cables. Sensor cable pins are #2, 4, 5, 6, 11, 12,13, and 19 . Check for open and short circuits between the connector and its relatedcable end. Also check for damaged harness pins. If there is a sensor extensioncable attached to the wire harness, test this separately for continuity. Replace anydefective

hardware and retest.3. Be sure to listen for two clicks when reconnecting the main wire harness to the ECU.

Secure the connection with the attached metal clasp and bail latch.

Code 01, 02, 03, 04, 05, or 06:

Code 00, 07, A4, A7, C0 or C1 or C2:

42

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PLC, PLC Plus, & PLC Select

43

Indicates that a solenoid or its cable has an open circuit internally.1. The most likely causes include: a bad solenoid or a loose solenoid connection.

Disconnect the solenoid and check the resistance at the solenoid pins. Readingsacross the two bottom pins should be between 7 and 9 ohms. Check the femaleterminals on the connector for excessive pin spread or corrosion. Replace defectivehardware as required and retest.

2. Additional possible causes are: a bad solenoid cable, the main wire harness 19 pinconnector is not completely latched into the ECU, or a harness pin is

damaged or bent. Remove the harness from the ECU and check for continuitybetween pins 7, 14, 15, 16, 17, and 18 and their related terminals on the cable end.Repair as required and retest.

3. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Troubleshooting - PLC ABS

Troubleshooting - PLC ABS:

Code 21, 22, 23, 24, 25, or 26 (Occurs when the trailer is moving):Indicates that there is an intermittent loss of a sensor signal when the trailer is travelingdown the road. This type of fault is often difficult to diagnose.1. The most likely causes include: a broken sensor retaining clip, a damaged exciter,

or excessive wheel bearing end play*. Check components at the affected wheel.2. Other possible causes are: a loose, damaged, or corroded sensor electrical connection or a break in the cable. Check the connectors for these items. If the connections look good, then look for visual external damage to the cable. Replace

any suspect components and retest.* Ensure that the wheel bearings are torqued per the manufacture’s specification.

Code 41, 42 or 43 (Occurs when the trailer is moving):Indicates that a wheel is slow to come back up to speed when ABS releases the brakeduring an ABS event.1. The most likely causes include: a dragging brake, a pinched or kinked delivery hose,

or defective modulator valve, or an unequal number of exciter teeth between wheels.Check the brakes to ensure that they release completely. Look for visual externaldamage to the delivery hoses or delivery tubing. Replace any defective hardwareand retest.

Code 61, 62, 63, 67, 68, or 69:

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PLC, PLC Plus, & PLC Select

Indicates that ABS voltage is below about 8.5 volts. This fault will disappear when thevoltage exceeds 8.5 volts, without the ignition being recycled.1. The most likely causes include: a damaged or corroded wire, terminal, or splice in

the ABS power supply circuit. Check the voltage drop between the SAE J560 7-wayand the ABS ECU. The voltage drop should not exceed 2 volts. Remove the powercable from the ECU and test for continuity with power disconnected.

2. If power is coming from somewhere other than the tractor; make sure the testerbattery is fully charged or the voltage converter has adequate DC voltage and currentcapacity. DO NOT use a battery charger.

3. Another possible cause is undersized wiring. Recommended vehicle harness wiresizes are 10 gauge for power (permanent and stoplight) and 8 gauge for ground.

Troubleshooting - PLC ABS:

Troubleshooting - PLC ABS

Code 71, 72, 73, 77, 78, or 79:Indicates that a solenoid or its cable has a short circuit to ground (negative).1. The most likely causes include: a damaged cable or solenoid. An example of this is

a worn or chafed cable that has exposed wires contacting the trailer. Disconnect thesolenoid connector and check for continuity between each solenoid terminal andtrailer ground. Next remove the main wire harness 19 pin connector and check forcontinuity between the trailer ground and pins 7, 14, 15, 16, 17, and 18. If the resis-tance is less than 10M ohms in any case, replace suspect hardware and retest. Ifthe code still exists, than the ECU is likely defective.

2. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Code 81, 82, 83, 87, 88, or 89:Indicates that the solenoid or its cable has a short circuit to B+ (positive 12 volts).1. The most likely cause is a damaged cable or solenoid. Remove the harness from

the ECU and test for continuity between pins 7, 14, 15, 16, 17, and 18 and trailer B+,with power disconnected. If the resistance is less than 10M ohms in any case,replace suspect hardware and retest. If the code still exists, then the ECU is likelydefective.

2. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Code 90:

44

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC ABS

Code 92:Indicates that the ABS voltage is above 16.5 volts.1. The most likely cause is a malfunctioning voltage regulator or tester power supply

set too high. If this occurs while troubleshooting the trailer without a tractor connected, verify that the tester power supply is below 16 volts before proceeding.

Code 80, 93, 99, E0-E9, or EA-EF:Indicates that the ECU is likely defective.1. Replace the ECU and retest to confirm problem is resolved.

Code CA, CC:1. A “CA” code is an invitation to “clear all” stored faults stored in memory. Note that if

dynamic faults are stored in memory, the ABS Warning Lamp may remain ON untilthe trailer is driven above 6 mph. If the Lamp remains ON, the fault still exist. Cor-rect the problem and retest, then clear stored faults from memory.

2. A “CC” code will be displayed during the third consecutive time that a “Clear All” isattempted. This is an invitation to “Clear Configuration” and should be avoided.This is only used to reconfigure the ABS to a 2S/1M after it has been configured to a2S/2M or 4S/2M. If a “CC” is displayed, power the system down and power backup.

ABS Warning Light Stays On Permanently:

Troubleshooting - PLC ABS:

45

Upon power up of the ABS system, the ABS warning light should come ON for about 3seconds, then go OFF. If the light stays ON, it may be caused by improper light wiring, orby a fault in the ABS system.1. Check for diagnostic fault codes. If anything other than an “07” is displayed, review the

“Troubleshooting” section of this Manual for possible solutions. After the problem isrepaired, clear all stored faults.

2. If an “07” is displayed but there was a 11-16, 21-26, or 41-43 stored in memory, thencorrect the problem and drive the trailer above 6 mph to get the ABS light to turn OFF.

3. If there are no stored faults and an “07” is displayed, and the ABS light is still ON, thenthe ABS light is mis-wired. Remove the main wire harness 19 pin

connector at the ECU and verify continuity between pin #10 and the trailer light. (Pin#10 and the light should be connected through pin “D” of the Delphi “Packard” 5 pinpower connection.) The remaining light wire must be grounded to the trailer chassis orconnected to the SAE J560 7-way connector ground wire. Check for continuity betweenthe ABS light wire and ground. Repair as necessary and retest.

4. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

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PLC, PLC Plus, & PLC Select

Troubleshooting - PLC ABS:

Troubleshooting - PLC ABS

No ABS Warning Light Illumination:

46

1. Check the bulb to verify that it is functional. If not functional, replace it.2. Verify that there is power to the ECU. Disconnect the main wire harness 19 pin

connector and check for B+ (positive power) between either pin #1 or #3 and groundpin #8 (pin #3 requires a brake application as it is stoplight power). The voltagedrop between the SAE J560 7-way and the ECU should not exceed 2 volts. If nopower exists at either pin, then check continuity from these pins to the SAE J560 7-way connector red and blue circuits. Make necessary repairs and retest.

3. If the problem is still present, remove the main wire harness 19 pin connector at theECU and verify continuity between pin #10 and the light (pin #10 and the light shouldbe connected through pin “D” of the Delphi “Packard” 5 pin power connection.) Theremaining light wire must be grounded to the trailer chassis or connected to the SAEJ560 7-way connector ground wire. Check for continuity between the ABS light wireand ground. Repair as necessary and retest.

4. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

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PLC, PLC Plus, & PLC Select

PLC PLUS

47

PLC PLUS Information

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PLC, PLC Plus, & PLC Select

*

48

ABS Relay ValveFFABS Valve

7.28” Swing Radius

7.28” Swing Radius

3-Way Clip(Optional)

Sensor

ABS LampPower Cable

Tie Strap

Clasp

PLC PLUS Loom

Components - PLC PLUS

Sensor Cable Clip

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

Power Cable

Sensor Cable

2S/1M System Wiring - PLC ABS:

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

1B

1A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

49

2S/1M System Wiring - PLC PLUS

Power Connector Pins

Valve Cable

Auxiliary Cables

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

(Auxillary CablesPLC Plus Only)

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

Power Cable

Sensor Cable

2S/2M System Wiring - PLC ABS:

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

2 B

2A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

50

2S/2M System Wiring - PLC PLUS

Power Connector Pins

Valve Cable

Auxiliary Cables

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

(Auxillary CablesPLC Plus Only)

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PLC, PLC Plus, & PLC Select

A (B+ Stop)

D (Trailer Light)

C (Cab Light)

E (Ground)

B (B+ Perm)

CD

BA E

4S/2M Axle-By-Axle System Wiring - PLC PLUS

Valve Cable

Power Cable

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

Solenoid ConnectionHand Tighten Collar

3A

2A

7 Way WiringSensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before paintingApply dielectric grease toall electrical connections

SensorConnection

51

Sensor Cable

3B

2B

Power Connector Pins

(Auxillary CablesPLC Plus Only)

Auxiliary Cable

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

SAE J560

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PLC, PLC Plus, & PLC Select

BA

D C

EB (B+ Perm)

A (B+ Stop)

E (Ground)

C (Cab Light)

D (Trailer Light)

4S/2M Side-By-Side System Wiring - PLC PLUS

Valve Cable

Power Cable

Federal regulations require that new trailers, starting 3/1/2001, have the capability toprovide an ABS fault signal from the trailer ABS into the tractor. Haldex provides two(2) options for this, one is through Industry standard “PLC 4 Trucks” multiplexing (thesignal is carried on Pin 7), and the other is a hard wire (through Pin C of the powerconnector via the ISO 3731 connector). The requirement for the trailer mounted ABSlamp remains in effect until March of 2009.

Note:

* Distance of ABS Lampfrom red rear clearanceside marker lamp:5.9”min. to 23” inches max.

Solenoid ConnectionHand Tighten Collar

3B

3A

7 Way Wiring

SensorConnection

Legend

WireHarness

ABS Light (Mounted on road side oftrailer, at the rear.)*

Cover all exposed connections before painting

Apply dielectric grease toall electrical connections

SensorConnection

52

Sensor Cable

2B

2A

Power Connector Pins

(Auxillary CablesPLC Plus Only)

Auxiliary Cable

SAE J560

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PLC, PLC Plus, & PLC Select

"click"

"click"

PLC PLUS

53

Harness Connection - PLC Plus:

ECU

Step #1Open the clasp by inserting ascrewdriver into the clip slotand prying forward.

Step #2Connect the wiring harness tothe ECU (listen for 2 “clicks”as the latches fall into place).

Step #3Close the clasp and lock into place.Band should completely cover the enlargedportion of the wiring harness overmold.

Step #4Slide the bail latch over the ears on the loom tocomplete the assembly.

Care must be taken when attaching the wiring harness to the ECU. The clasp and baillatch must be properly latched to ensure trouble-free ABS operation.

Bail Latch Support Clasp

Harness Connetion - PLC PLUS

Clasp

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PLC, PLC Plus, & PLC Select

This step will ensure the ABS system (less power cable and warning lamp) is functioning properly, before the bogey is assembled to the trailer.

Test Equipment:

12 VDC power source (do not use a battery charger), and interface cable with a Packard 5pin male power connector and an ABS test light attached, and shop air.

Procedure:1. Charge the supply and service air systems.2. Connect test power cable to wiring harness power lead.3. ABS valves should “blow down” first. You will hear a brief shot of air for each valve; and each valve will only exhaust once: a. 2S/1M : The Red Channel will exhaust b. 2S/2M or 4S/2M : The Blue Channel will exhaust first, then the Yellow Channel 4. The ABS light should illuminate for about 3 seconds and then turn off.

Test Equipment:12 VDC power source (do not use a battery charger) and shop air.

Procedure:1. Charge the supply and service air system.2. Apply power source to 7-way receptacle.3. The ABS Valve(s) should “blow down” first. You will hear a brief shot of air for each

valve; and each valve will only exhaust once:a. 2S/1M: the Red Channel will exhaust.b. 2S/2M or 4S/2M : the Blue Channel will exhaust first, then the Yellow Channel.

4. The ABS light should illuminate for about 3 seconds and then turn off.5. If desired, information such as the name of the Inspector, the date inspected, or the

Trailer VIN can be stored in the ABS ECU using a PC, in conjunction with Haldex’sPC Diagnostics software.

If ABS light never illuminates, or stays illuminatedduring the ABS check, refer to the Troubleshoot-ing Section of this Manual (see pages 57 - 61).

Installation Test - PLC Plus:

Production Testing - PLC PLUS

End of Line ABS Check:

Note:

5 pin

54

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PLC, PLC Plus, & PLC Select

9

8

7

1

2

34

5

61424

26

27

28

25

18

17

19

16

15

20

21

22

23

10

11

12

13

55

To check the operation of the entire ABS system, connect a tractor to the trailer and chargethe trailer’s air tanks. Turn on the ignition key and ensure that the warning light comes onbriefly, then goes out. Pull the trailer at a speed above 6 mph and make a brakeapplication until the tractor-trailer has come to a complete stop. Verify that the ABS lighthas remained OFF. If the light remains OFF, the system is functioning properly. Ifthe ABS system detected an error during the stop, the warning light will be ON. If the lightnever comes ON when the ignition is turned on, then refer to the “Troubleshooting - NoABS Warning Light Illumination” section of this Manual (see page 61). If the light staysON with the ignition key on, refer to the “Troubleshooting - ABS Warning LightIlluminates; Stays On Permanently” section of this Manual (see page 60).

Road Test - PLC PLUS

PLC

PLU

S28

- pi

n c

onne

ctor

1. Disconnect power from the ABS system before testing or making any re-pairs.

2. Most ABS problems are related to: A) Cut, corroded, or abraded wires. B) Corroded connectors and terminals. C) Connector terminals not latched or seated

correctly to mating assemblies. D) Excessive sensor air gap, sensor clip retention,or wheel bearing end play.

3. After making any repairs go to the “Diagnostic Tools” section of this Manual (seepage 56) to confirm that the Fault is corrected. If a Fault # 11 thru 16, 21 thru 26, or41 thru 43 has occurred, and has been corrected, the code will read an “07”. Thetrailer must then be driven above 6 mph for the ABS warning light to go OFF.

Notes:

Sensor 2A LOSensor 2B HI

Yellow Valve Dump

Auxiliary 2 I/OAnalog +5V OutputAnalog 1 Input (Slow)B+ Permanent PowerB+ Stoplamp Power

Sensor 2B LO

In Cab Lamp (LO Side Drive) Open on Loom

Sensor 2A HI

Analog 2 Input (Fast)

Sensor 3B HI

Blue Valve Dump

Sensor 3B LOSensor 3A HI

Blue Valve CommonYellow Valve Common

Analog GroundB- Ground

Auxiliary GroundAuxiliary 1 Input/Output

Yellow Valve HoldTrailer Lamp ABS (Hi Side Drive)

Trailer Lamp Auxiliary (Hi Side Drive)

Sensor 3A LOBlue Valve Hold

Auxiliary 3 Input Only

Production Testing - PLC PLUS

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PLC, PLC Plus, & PLC SelectProduction Testing - PLC PLUS

The PLC Info Center has a screen that can display ABS fault codesplus a number of other items. The PLC Info Center only needs to beconnected to vehicle power and ground. (A diagnostic interface cableis available to accommodate this connection.)Available functions include:1. View active fault codes (2 digit code) and fault occurrance count.2. View stored fault codes and fault occurrance count.3. Clear stored fault codes.4. View wheel speed sensor identification corresponding to each individual wheel when a wheel is rotated.5. View sensor and valve configuration code.6. View ABS ECU type and serial number.7. Energize individual valve solenoids.8. Odometer

A. View Odometer, Tire Scale Factor, Service Interval and Trip Distance.B. Set Odometer units (miles or kilometers), Scale Factor and Service Interval.

9. Monitor and control trailer auxiliary devices such as: lift axle, dome light, low reservoir, door ajar, overload, etc. (when used with PLC Plus ABS)

PLC PC Diagnostics displays the mostinformation. Functions available include:1. View ABS ECU Part Number.2. Save ABS diagnostic results for a print out of test verification.3. Read/ Write data internally to ABS ECU.

Diagnostic Tools - PLC PLUS:

PLC Info Center:

ABS fault codes can be accessed using the ABS Lightwithout the use of any other tools. The Blink code “Simple Fault Mode” diagnostics canbe activated by pressing on the brake pedal to activate the trailer brakes and switchingignition power on, off, then back on in 1 second intervals. See Blink Code informationon Pages 63 - 66.

Blink Codes:

PLC PC Diagnostics:DiagnosticInterfaceCable

Note: PLC Info Center and PLC PC Diagnostics are not compatible with oldergenerations of ABS manufactured prior to March 2001.

J1708/ PLCAdapter

PLC Interface CableABS PC DiagnosticSoftware

9 to 25Way Cable

56

Minimum Requirements: Pentium II,32 MB Ram, 233 MHz, Windows 95B,RS232 9 pin com port

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC PLUS

This indicates that the system is working OK.1. “00” with the trailer moving or “07” with the trailer not moving indicates there are no

active faults.2. “A4”, “A7”, and “A8” are configuration codes and may or may not be present.3. “C0”, “C1”, or “C2” indicate that the ABS is a 2S/1M, 2S/2M or 4S/2M system.

Troubleshooting - PLC Plus:

Indicates that the output of a wheel speed sensor of a moving trailer is insufficient.1. The most likely reason for this is the gap between one sensor and the exciter is too

great. Measure the AC voltage at the sensor in question while rotating the wheel at arate of about 1 revolution every two seconds. The output should be at least 200millivolts. If the output is less than 200 millivolts, try pushing in the sensor until ittouches the exciter. If this doesn’t correct the problem, then replace the sensor.

2. If the gap on all sensors is too great, you may not get a fault. If the ECU isn’t gettingvoltage from any sensor it will assume that the trailer is not moving, even when it is. Ifyou suspect this is the case, check each wheel separately for sensor output.

Code 11, 12, 13, 14, 15, or 16 (Occurs when the trailer is moving):

This Indicates that a wheel speed sensor or its wiring has a short or open circuit.1. Disconnect the relevant sensor connector from the sensor and measure the resistance between the two pins in the sensor connector housing. The ohmmeter

reading for the sensor should be between 980 and 2350 ohms. The sensor shouldbe replaced, if the reading is outside of the these limits.

2. The main wire harness 28 pin connector can be disconnected, at the ECU to checkfor open or shorts in the sensor cables. Sensor cable pins are #1, 2, 10, 11, 12, 20,21, and 22 on PLC PLUS. Check for open and short circuits between the connectorand its related cable end. Also check for damaged harness pins. If there is a sensorextension cable attached to the wire harness, test this separately for continuity.Replace any defective hardware and retest.

3. Be sure to listen for two clicks when reconnecting the main wire harness to the ECU.Secure the connection with the attached metal clasp and bail latch.

Code 01, 02, 03, 04, 05, or 06:

Code 00, 07, A4, A7, C0 or C1 or C2:

57

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PLC, PLC Plus, & PLC Select

58

Indicates that a solenoid or its cable has an open circuit internally.1. The most likely causes include: a bad solenoid or a loose solenoid connection.

Disconnect the solenoid and check the resistance at the solenoid pins. Readingsacross the two bottom pins should be between 7 and 9 ohms. Check the femaleterminals on the connector for excessive pin spread or corrosion. Replace defectivehardware as required and retest.

2. Additional possible causes are: a bad solenoid cable, the main wire harness 28 pinconnector is not completely latched into the ECU, or a harness pin is

damaged or bent. Remove the harness from the ECU and check for continuitybetween pins #3, 4, 13, 14, 23, and 24 and their related terminals on the cable end.Repair as required and retest.

3. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Troubleshooting - PLC ABS

Troubleshooting - PLC Plus:

Code 21, 22, 23, 24, 25, or 26 (Occurs when the trailer is moving):Indicates that there is an intermittent loss of a sensor signal when the trailer is travelingdown the road. This type of fault is often difficult to diagnose.1. The most likely causes include: a broken sensor retaining clip, a damaged exciter,

or excessive wheel bearing end play*. Check components at the affected wheel.2. Other possible causes are: a loose, damaged, or corroded sensor electrical connection or a break in the cable. Check the connectors for these items. If the connections look good, then look for visual external damage to the cable. Replace

any suspect components and retest.* Ensure that the wheel bearings are torqued per the manufacture’s specification.

Code 41, 42 or 43 (Occurs when the trailer is moving):Indicates that a wheel is slow to come back up to speed when ABS releases the brakeduring an ABS event.1. The most likely causes include: a dragging brake, a pinched or kinked delivery hose,

or defective modulator valve, or an unequal number of exciter teeth between wheels.Check the brakes to ensure that they release completely. Look for visual externaldamage to the delivery hoses or delivery tubing. Replace any defective hardwareand retest.

Code 61, 62, 63, 67, 68, or 69:

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PLC, PLC Plus, & PLC Select

Indicates that ABS voltage is below about 8.5 volts. This fault will disappear when thevoltage exceeds 8.5 volts, without the ignition being recycled.1. The most likely causes include: a damaged or corroded wire, terminal, or splice in

the ABS power supply circuit. Check the voltage drop between the SAE J560 7-wayand the ABS ECU. The voltage drop should not exceed 2 volts. Remove the powercable from the ECU and test for continuity with power disconnected.

2. If power is coming from somewhere other than the tractor; make sure the testerbattery is fully charged or the voltage converter has adequate DC voltage and currentcapacity. DO NOT use a battery charger.

3. Another possible cause is undersized wiring. Recommended vehicle harness wiresizes are 10 gauge for power (permanent and stoplight) and 8 gauge for ground.

Troubleshooting - PLC Plus:

Troubleshooting - PLC PLUS

Code 71, 72, 73, 77, 78, or 79:Indicates that a solenoid or its cable has a short circuit to ground (negative).1. The most likely causes include: a damaged cable or solenoid. An example of this is

a worn or chafed cable that has exposed wires contacting the trailer. Disconnect thesolenoid connector and check for continuity between each solenoid terminal andtrailer ground. Next remove the main wire harness 28 pin connector and check forcontinuity between the trailer ground and pins 3, 4, 13, 14, 23, and 24. If the resis-tance is less than 10M ohms in any case, replace suspect hardware and retest. Ifthe code still exists, than the ECU is likely defective.

2. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Code 81, 82, 83, 87, 88, or 89:Indicates that the solenoid or its cable has a short circuit to B+ (positive 12 volts).1. The most likely cause is a damaged cable or solenoid. Remove the harness from

the ECU and test for continuity between pins 3, 4, 13, 14, 23, and 24 and trailer B+power connection, with power disconnected. If the resistance is less than 10Mohms in any case, replace suspect hardware and retest. If the code still exists, thenthe ECU is likely defective.

2. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Code 90:

59

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PLC, PLC Plus, & PLC SelectTroubleshooting - PLC ABS

Code 92:Indicates that the ABS voltage is above 16.5 volts.1. The most likely cause is a malfunctioning voltage regulator or tester power supply

set too high. If this occurs while troubleshooting the trailer without a tractor connected, verify that the tester power supply is below 16 volts before proceeding.

Code 80, 93, 99, E0-E9, or EA-EF:Indicates that the ECU is likely defective.1. Replace the ECU and retest to confirm problem is resolved.

Code CA, CC:1. A “CA” code is an invitation to “clear all” stored faults stored in memory. Note that if

dynamic faults are stored in memory, the ABS Warning Lamp may remain on until thetrailer is driven above 6 mph. If the Lamp remains ON, the fault still exist. Correctthe problem and retest, then clear stored faults from memory.

2. A “CC” code will be displayed during the third consecutive time that a “Clear All” isattempted. This is an invitation to “Clear Configuration” and should be avoided.This is only used to reconfigure the ABS to a 2S/1M after it has been configured to a2S/2M or 4S/2M. If a “CC” is displayed, power the system down and power backup.

ABS Warning Light Stays On Permanently:

Troubleshooting - PLC Plus:

60

Upon power up of the ABS system, the ABS warning light should come ON for about 3seconds, then go OFF. If the light stays ON, it may be caused by improper light wiring, orby a fault in the ABS system.1. Check for diagnostic fault codes. If anything other than an “07” is displayed, review the

“Troubleshooting” section of this Manual (pages 57 - 61) for possible solutions. Afterthe problem is repaired, clear all stored faults.

2. If an “07” is displayed but there was a 11-16, 21-26, or 41-43 stored in memory, thencorrect the problem and drive the trailer above 6 mph to get the ABS light to turn OFF.

3. If there are no stored faults and an “07” is displayed, and the ABS light is still ON, thenthe ABS light is mis-wired. Remove the main wire harness 28 pin

connector at the ECU and verify continuity between pin #15 and the trailer light. (Pin#15 and the light should be connected through pin “D” of the Delphi “Packard” 5 pinpower connection.) The remaining light wire must be grounded to the trailer chassis orconnected to the SAE J560 7-way connector ground wire. Check for continuity be-tween the ABS light wire and ground. Repair as necessary and retest.

4. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

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PLC, PLC Plus, & PLC Select

1. Check the bulb to verify that it is functional. If not functional, replace it.2. Verify that there is power to the ECU. Disconnect the main wire harness 28 pin

connector and check for B+ (positive power) between either pin #5 and 6 andground pin #26 (Pin #5 requires a brake application as it stoplight power). Thevoltage drop between the SAE J560 7-way and the ECU should not exceed 2 volts.If no power exists at either pin, then check continuity from these pins to the SAEJ560 7-way connector red and blue circuits. Make necessary repairs and retest.

3. If the problem is still present, remove the main wire harness 28 pin connector at theECU and verify continuity between pin #15 and the trailer light. (Pin #15 and the lightshould be connected through pin “D” of the Delphi “Packard” 5 pin power connec-tion.) The remaining light wire must be grounded to the trailer chassis or connectedto the SAE J560 7-way connector ground wire. Check for continuity between theABS light wire and ground. Repair as necessary and retest.

4. Be sure to listen for two clicks when reconnecting the main wire harness to the ECUand secure the connection with the attached metal clasp and bail latch.

Troubleshooting - PLC Plus:

Troubleshooting - PLC PLUS

No ABS Warning Light Illumination:

61

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PLC, PLC Plus, & PLC Select

Diagnostics

62

Diagnostics

7-Way Diagnostic Interface Cable

Info Center

PC Diagnostic

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PLC, PLC Plus, & PLC SelectDiagnostics

Blink Code Diagnostics:

Procedure For Activating Blink Code Diagnostics:

1. The trailer must be stationary.2. The trailer must be connected to a DC-power supply (8-14 volts). Do not use a

battery charger.3. Constant power (8-14 volts) must be provided to the stoplight circuit (apply trailer

brakes).4. Ignition power must be cycled on and off (trailer auxiliary circuit) to reach the desired

mode (shown above). Note: Stoplight and ignition power must be independent for blink code trouble-

shooting. If ignition power is required to be on for your brake light to operate, thenthe blink code diagnositcs will not function.

There are 4 Blink Code modes:

Procedure Notes:

1. Once entered, a mode can only be terminated by completely disconnecting all trailerpower.

2. All modes repeat endlessly. Each repeat is separated by 10 seconds of continuouslamp energization.

3. All codes are separated by 2 seconds of lamp OFF.4. All fault codes are followed by an occurrence count which is displayed at a much

faster rate than the fault code.

Simple Mode Diagnostics:

This mode has a shortened list of fault codes that will display. Faults are grouped tosimplify the diagnostics. Up to 3 active codes will display at one time. These faults needto be repaired before other active faults can be displayed. See Simple Mode FaultsCode Table on next page.

:edoM noitpircseD selcyCnoitingI )FFOdnoces1/NOdnoces1(

1 edoMdeepSleehW/elpmiS NO,ffo,NO

2 edoMstluaFevitcA NO,ffo,NO,ffo,NO

3 edoMraelC/stluaFderotS NO,ffo,NO,ffo,NO,ffo,NO

4 edoMnoitarugifnoC NO,ffo,NO,ffo,NO,ffo,NO,ffo,NO

63

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64

Blink Code Diagnostics:

Diagnostics

METI TNUOCHSALF TLUAFLAUTCA

KOmetsyS nOsyatSpmaL 70

A1rosneS hsalF1 10

B1rosneS sehsalF2 20

A2rosneS sehsalF3 30

B2rosneS sehsalF4 40

A3rosneS sehsalF5 50

B3rosneS sehsalF6 60

evlaVdeR sehsalF7 78,18,77,17,76,16

evlaVeulB sehsalF8 88,28,87,27,86,26

evlaVwolleY sehsalF9 98,38,97,37,96,36

egatloVwoL sehsalF01 09

eruliaFUCE sehsalF11 sedoC-E,99,39

Mode 1 - Simple Mode Diagnostics Faults Table (ON, OFF, ON):

Wheel Speed Mode:

Wheel Speed Mode is accessible only when in Simple Mode. This Mode is notactivated until the ECU has received a signal from the wheel speed sensor of aspinning wheel. The hold solenoid of the modulator associated with the particularsensed spinning wheel will be cycled. The blink codes for the sensed wheels are asfollows:

S1A: 1 Flash S1B: 2 Flashes S2A: 3 FlashesS2B: 4 Flashes S3A: 5 Flashes S3B: 6 FlashesNote 1: Spin only one wheel at a time.Note 2: Once a wheel is rotated, the ABS lamp will remain on after the wheel isstopped, until the next wheel is rotated.

Note: If the simple mode does not show a fault code, but the ABS lamp remains “ON”after powering the ABS, there maybe dynamic faults stored in the memory. In this case,proceed to the stored fault mode of diagnostics.

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PLC, PLC Plus, & PLC SelectDiagnostics

Blink Code Diagnostics:

Mode 2 - Active Fault Mode (ON, OFF, ON, OFF, ON):When the Active Fault Mode is enabled (see page 63), the ABS lamp displays anumerical fault code sequence for each existing fault, up to nine fault codes at a time.The nine faults must be repaired before additional active faults can be displayed . Theblink codes used in the Active Fault Mode are related to the Haldex standard faultcodes and are shown on pages 67 - 71.

In this mode (see page 63) the ABS lamp displays a numerical fault code sequence foreach stored fault. All stored faults (not currently active) are displayed in this mode. Thelamp will display up to nine passive stored faults at a time. The most recent stored faultis displayed last. The blink codes used in the Passive Stored Fault Mode are related tothe Haldex standard fault codes and are shown on pages 67 - 71.

1. A “zero” for codes such as “01” is indicated by a two second lamp “ON”condition. Allother digits are indicated by a half second lamp “ON” condition.

Example: Fault code “23” is indicated by the lamp flashing ON twice for onehalf second each time - followed by two seconds of lamp unlit -followed bye three 1/2 second flashes. The third flash is theoccurance count and as 1/4 second flashes.

2. There is a two second lamp “OFF” delay between the digits in each code.3. Code 07 (system OK, vehicle at rest) is displayed as a continuous Lamp “ON”

condition.

Mode 3 - Stored (Passive) Faults Mode (ON, OFF, ON, OFF, ON, OFF, ON):

The fault code blink sequence is followed by the occurrence count for that fault in eitherthe Active or Passive Mode. The occurrence count is displayed at a much faster rate inorder to differentiate between the code and its occurrence count.

Active / Stored Mode Fault Occurrences:

Active / Stored Fault Mode Notes:

Clearing Stored Codes:The passive stored fault codes may be cleared by switching ignition power off and ontwice during the 10 seconds of lamp energization that occurs prior to each repeat of thefault code blink sequence. The lamp will flash rapidly for 10 seconds to show that thefaults are being erased.

65

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66

Blink Code Diagnostics:

Diagnostics

Mode 4 - Configuration Mode (ON, OFF, ON, OFF, ON, OFF, ON, OFF, ON):This Mode displays Configuration and Auxiliary Codes. The Configuration Code isdisplayed prior to Auxiliary Codes. The tables below show a list of ConfigurationCodes and a list of Auxiliary Codes which are supported by Blink Codes. AuxiliaryCodes are displayed low to high. Each blink code digit will refer to a digit in the Haldexconfiguration codes.

The configuration codes may be cleared by switching ignition power off and on twiceduring the 10 seconds of lamp energization that occurs prior to each repeat of the faultcode blink sequence. The lamp will flash rapidly for 10 seconds to indicate that theconfiguration has been erased from the ECU’s memory. The ECU will then store its fullconfiguration on the next power up.

Clear Configuration Mode:

gifnoCedoC

sknilB noitcnuF detfiLelxA desUrosneS desUsrotaludoM

0C 1 M1/S2 B1SA1S DER

1C 2 M2/S2 B2SA2S WOLLEY,EULB

2C 3 M2/S4 B3SB2SA2SA3S WOLLEY,EULB

3C 4 M2/S4 3ro2 )B3S(B2SA2S)A3S( WOLLEY,EULB

xuAedoC

sknilB noitpircseD

0A 1 elbacilppAtoN

1A 2 elbacilppAtoN

2A 3 elbacilppAtoN

3A 4 elbacilppAtoN

4A 5 .deilppasirewopnehwdeyalpsidyliratnemom-evlavesnesdaoloN

5A 6 elbacilppAtoN

6A 7 elbacilppAtoN

7A 8 )M1/S2sievlavder(lennahcevlavwolleyrofgnimmargorpHLS

8A 9 )M1/S2sievlavder(lennahcevlavwolleyrofgnimmargorpHLSM

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PLC, PLC Plus, & PLC Select

Diagnostic Codes:

Diagnostics

:EDOC :NOITANALPXE :NOITULOS CLPtceleS

CLP CLPSULP

00 hpm6revosideepsleehw-dnuoftluaFoN lanoitareposiSBA x x x10 sahA1SgniriwrosnesdeepsleehwlennahcdeR

.tiucrictrohSronepOnaroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x x20 sahB1SgniriwrosnesdeepsleehwlennahcdeR

.tiucrictrohSronepOnaroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x x30 sahA2SgniriwrosnesdeepsleehwlennahceulB

.tiucrictrohSronepOnaroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x40 B2SgniriwrosnesdeepsleehwlennahcwolleY

.tiucrictrohSronepOnasahroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x50 sahA3SgniriwrosnesdeepsleehwlennahceulB

.tiucrictrohSronepOnaroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x60 B3SgniriwrosnesdeepsleehwlennahcwolleY

.tiucrictrohSronepOnasahroelbacecalpernehtsnoitcennocelbackcehC

.yrassecensarosnes x x70 .DNUOFTLUAFON .hpm6<"70":syalpsiD.lanoitarepoyllufsiUCESBA x x x11 .egralootpagA1SrosnesdeepslennahcdeR

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x x21 .egralootpagB1SrosnesdeepslennahcdeR

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x x31 .egralootpagA2SrosnesdeepslennahceulB

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x41 .egralootpagB2SrosnesdeepslennahcwolleY

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x51 .egralootpagA3SrosnesdeepslennahceulB

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x61 .egralootpagB3SrosnesdeepslennahcwolleY

.muminimaottpekebdluohspaGreticxednarosnesneewtebtnemngila&pagkcehC

.evitcefedebyamrosneS.gnir x x02 .desugnir)enot(reticxetcerrocnI forebmuN.gnirreticxenohteetforebmunkcehC

.sdneleehwllarofmrofinuebdluohshteet x x x

67

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PLC, PLC Plus, & PLC SelectDiagnostics

Diagnostic Codes::EDOC :NOITANALPXE :NOITULOS CLP

tceleSCLP CLP

SULP

12 A1SrosnesdeepsleehwlennahcdeR.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X X

22 B1SrosnesdeepsleehwlennahcdeR.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X X

32 A2SrosnesdeepsleehwlennahceulB.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X

42 B2SrosnesdeepsleehwlennahcwolleY.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X

52 A3SrosnesdeepsleehwlennahceulB.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X

62 B3SrosnesdeepsleehwlennahcwolleY.egatlovtuptuocitarrenasah

,dengilasimgnirreticxe/rosnes;snoitcennocelbackcehC.gniraebleehwro,reticxe,rosnes,elbacrosnesdegamad X X

03 lennahclatigid(tluaf0lennahcyrailixuAO/I)0

eruliafyalerxobyrailixua,snoitcennocelbaclatigidkcehC X

13 lennahclatigid(tluaf1lennahcyrailixuAO/I)1

eruliafyalerxobyrailixua,snoitcennocelbaclatigidkcehC X

23 lennahclatigid(tluaf2lennahcyrailixuAO/I)2

eruliafyalerxobyrailixua,snoitcennocelbaclatigidkcehC X

33 lennahclatigid(tluaf3lennahcyrailixuAylnotupnI)3

eruliafyalerxobyrailixua,snoitcennocelbaclatigidkcehC X

43 lennahcgolana(tluaf4lennahcyrailixuAylnotupnI)1

snoitcennocelbacgolanakcehC X

53 lennahcgolana(tluaf5lennahcyrailixuAylnotupnI)2

snoitcennocelbacgolanakcehC X

73 ecivedlanretxeybdelangispmaL X X X

04 elxanassorcadessorcgniriwrosneS .snoitcennocelbacrosneskcehC X X X

68

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PLC, PLC Plus, & PLC Select

69

:EDOC :NOITANALPXE :NOITULOS CLPtceleS

CLP CLPSULP

14 evlavdeRnoyrevocerleehwwolS.lennahc

detcirtser,ekarbgniggard.e.istluaflacinahcemrofkcehC.evlavevitcefedrognipip X X X

24 evlaveulBnoyrevocerleehwwolS.lennahc

detcirtser,ekarbgniggard.e.istluaflacinahcemrofkcehC.evlavevitcefedrognipip X X

34 evlavwolleynoyrevocerleehwwolSlennahc

detcirtser,ekarbgniggard.e.istluaflacinahcemrofkcehC.evlavevitcefedrognipip X X

16 evlavdeRnotiucricnepOdionelosdloH.lennahc

yamlennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedeb X X X

26 evlaveulBnotiucricnepOdionelosdloH.lennahc

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

36 wolleYnotiucricnepOdionelosdloH.lennahcevlav

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

76 deRnotiucricnepOdionelospmuD.lennahcevlav

yamlennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedeb X X X

86 eulBnotiucricnepOdionelospmuD.lennahcevlav

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

96 wolleYnotiucricnepOdionelospmuD.lennahcevlav

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

17 nodnuorgottiucrictrohSdionelosdloH.lennahcevlavdeR

yamlennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedeb X X X

27 nodnuorgottiucrictrohSdionelosdloH.lennahcevlaveulB

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

37 nodnuorgottiucrictrohSdionelosdloH.lennahcevlavwolleY

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

77 dnuorgottiucrictrohSdionelospmuDlennahcevlavdeRno

lennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedebevlav X X X

87 dnuorgottiucrictrohSdionelospmuD.lennahcevlaveulBno

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

Diagnostic Codes:

Diagnostics

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PLC, PLC Plus, & PLC Select

Diagnostic Codes:

Diagnostics

:EDOC :NOITANALPXE :NOITULOS CLPtceleS

CLP CLPSULP

97 dnuorgottiucrictrohsdionelospmuD.lennahcevlavwolleYno

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

08 nonoitalusnirooproegakaeltuptuO.slennahcevlavehtfoyna

.evitcefedebdluocesehtfoenoynA.UCEdnasevlavllakcehC X X X

18 no+BottiucrictrohsdionelosdloH.lennahcevlavdeR

yamlennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedeb X X X

28 no+BottiucrictrohsdionelosdloH.lennahcevlaveulB

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

38 no+BottiucrictrohsdionelosdloH.lennahcevlavwolleY

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

78 no+BotdetrohstuptuodionelospmuD.lennahcevlavdeR

yamlennahcevlavdeRnodioneloS.snoitcennocelbackcehC.evitcefedeb X X X

88 no+BotdetrohstuptuodionelospmuD.lennahcevlaveulB

yamlennahcevlaveulBnodioneloS.snoitcennocelbackcehC.evitcefedeb X X

98 no+BotdetrohstuptuodionelospmuD.lennahcevlavwolleY

lennahcevlavwolleYnodioneloS.snoitcennocelbackcehC.evitcefedebyam X X

09 TONseoD.tluafegatloVylppuswoLyromemniderotstonsI.hctal

OD.deriuqernahtsselsiUCEtalevelegatlovylppusrewoP.YLPPUSREWOPSAREGRAHCYRETTABAESUTON X X X

19 egatlovdionelosUCESBAlanretnioN.elbaliava

rewopevlaVdioneloSoN.nwolbesufroylppusrewopytluaF.ecruos X X X

29 .tluafegatloVrevOtupnirewoP rotalugeregatlov;timiltlov61ehtrevosiylppusrewoP.noitcnuflam X X X

39 .yalerlanretniUCESBAnotiucrictrohS .dionelosro,elbacevlav,UCESBAevitcefeD X X X

99 yromeMtpurroCSBA .UCESBAevitcefeD X X X

A9 yromeMtpurroCSBA .UCESBAevitcefeD X X X

70

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PLC, PLC Plus, & PLC SelectDiagnostics

Diagnostic Codes::EDOC :NOITANALPXE :NOITULOS CLP

tceleSCLP CLP

SULP

rofdeyalpsidebtondluohsyehT.UCESBAehtotdeilppasirewopnehwdeyalpsid)x(AsedoC:sedoCyrailixuA.yrassecensiriaper,deyalpsidyltnenamrepniamersedocfi;sdnoces2nahterom X X X

7A )M1/S2deR(wolleYnoHLS:reliarT.lennahc

.lennahcevlav)M1/S2deR(wolleYnonoitpoyrailixuA:reliarT X X X

8A .lennahcdeRnoHLSM:reliarT.)ylnoselxaelgnisroelbareetS(

.lennahcevlavdeRnonoitpoyrailixuA:reliarT X X X

0C noitarugifnocM1/S2 .rotaludomdeR.srosnesB1S,A1S X X X

1C noitarugifnocM2/S2 .srotaludomwolley,eulB.srosnesB2S,A2S X X

2C noitarugifnocM2/S4 .srotaludomwolley,eulB.srosnesB3S,B2S,A2S,A3S X X

3C noitarugifnocM2/S4 A3S(.srotaludomwolley,eulB.srosnesB3S,B2S,A2S,A3S)esneselxatfilB3Sdna X X

AC aton(.noitativniyromemesarE.)edocnoitarugifnoc X X X

CC aton(tpmorpnoitarugifnocesarE.)edocnoitarugifnoc X X X

FC srosnesfonoitanibmocelbatpeccanU.sdionelosdna X X X

)x(E:sedoC

lanretninehwdetarenegeraFEurht0E.UCESBAehtnihtiwtsixesmelborp

.UCESBAehtecalpeR.evitcefedsiUCESBA X X X

71

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PLC InfoCenterHand Held or Vehicle Mounted

ABS Diagnostic ToolInstruction Manual

I n n o v a t i v e V e h i c l eT e c h n o l o g y

InfoCenterPLC, PLC Plus, & PLC Select

72

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InfoCenter is a diagnostic tool used for readout of odometer and fault codes as well as other information as available in the ABS Electronic Control Unit (ECU).

The InfoCenter is normally connected to the ECU’s power source. While the ECU is powered from its normal sources,information is transferred to the InfoCenter on the permanent power. A power supply cable is included with the InfoCenter. Optional 7-Way “T” Connector or In-Cab Cigarette Lighter Adapter is available.

InfoCenter has FLASH memory and can be reprogrammed when used in conjunction with our premium “PLC Plus” ABSPlatform. Contact Haldex Brake Systems for further details.

FUNCTIONS

Odometer: Total Distance ABS ECU Information: Serial NumberTrip Distance Product CodeService/Interval Distance Setting System ConfigurationTire Scale Setting

Diagnostics: OK if No Fault Codes Modulator Valve TestsCurrent Fault Code Trailer ABS In-Cab Warning Lamp TestStore Fault Codes and Occurrence Count Trailer Auxiliary Monitor and Control withSensor Check -- Wheel Speed Bars PLC Plus ABS

INSTRUCTIONS THE DISPLAY THE LEGENDS

Some functions require you tohold the function button for two seconds; most, however, require that you press the function button only once.When a COM FAIL messageappears, check ABS power andpress either button again.

PRODUCT IDENTIFICATION AND CONFIGURATION

ABS Product Type: PLC . . . . . . . . . . . . . . . .2S/1M, 2S/2M or 4S/2MPLC SELECT . . . . . . . .2S/1M Only (Does Not Require A Wiring Harness)PLC PLUS . . . . . . . . . .2S/1M, 2S/2M or 4S/2M (Optional Trailer Auxiliaries)

Configuration Codes: Figures in parentheses indicate sensing is disabled when axle is lifted.

CODE FUNCTION SENSORS USED (AXLE LIFTED) MODULATORS USEDCFG C0 2S/1M 1A, 1B RedCFG C1 2S/2M 2A, 2B Blue, YellowCFG C2 4S/2M 2A, 2B, 3A, 3B Blue, YellowCFG C3 4S/2M 2A, 2B, (3A), (3B) Blue, Yellow

Flashing = ABS Communications

Flashes for Suspension Control

Total Distance

Trip Distance

2 Dots above the Active Fault

ON = Scheduled Service DueFlashing = Current ABS Fault

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Diagnostic Fault Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Tire Scale Factor Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Power Up Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Diagnostic Mode: View/Clear Stored Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . .8

Wheel Speed Sensor Output Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Odometer Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10* Clear Trip Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10* Set The Tire Scale Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11* Set The Service Maintenance Interval . . . . . . . . . . . . . . . . . . . . . . . .12-13

View ABS Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Modulator Valve Test (2S/1M Application) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Trailer ABS In-Cab Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Location of the PLC InfoCenter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Copyright 2002 by Haldex Brake Systems Division

World Headquarters10930 N. Pomona Avenue

Kansas City, MO 64153-1297

All rights reserved.Materials may only be reproduced with written permission of Haldex.

IMPORTANT NOTICE

The data listed herein is correct to the best of Haldex’s knowledge and belief, having been compiled from reliable and official sources of information. However, HALDEX CAN NOT ASSUME ANY RESPONSIBILITY for possible error or misapplication of the product.Final determination of the suitability of the products for the use contemplated by the Buyer is the sole responsibility of the Buyer. Haldex shall have no rresponsibility in connection with this suitability.

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POSSIBLE CAUSE(S)

BLANK No supply on ignition switched line. Fuse blown, InfoCenter or cable DISPLAY fault, Open circuit B -.

SENSOR Bar Displayed = Sensor Output O.K. Spin one wheel at a time to checkBAR for sensor output.

Bar Not Displayed = Sensor Output Low. Check sensor resistance and sensor to exciter alignment.

OPEN OR SHORT SENSOR OUTPUT GROUP

OK 00 System is O.K. Vehicle is moving Indicates a wheel speed sensor orS1A 01 1A sensor/wiring open or short circuit its wiring has a short or openS1B 02 1B sensor/wiring open or short circuit circuit. Disconnect the relevantS2A 03 2A sensor/wiring open or short circuit sensor and measure the resistanceS2B 04 2B sensor/wiring open or short circuit between the two pins in the sensorS3A 05 3A sensor/wiring open or short circuit connector housing. The ohmmeterS3B 06 3B sensor/wiring open or short circuit reading for the sensor should be OK 07 System is O.K. vehicle is stationary between 980 and 2350 ohms. The

sensor should be replaced, if this isnot the case. Refer to ABS ManualL30030HBS to check ABS Harness.

LOW SENSOR OUTPUT GROUP (Dynamic Codes)

S1A 11 1A sensor system fault Sensor is worn or not properlyS1B 12 1B sensor system fault adjusted, wiring open or shortS2A 13 2A sensor system fault circuit, wheel bearing not properlyS2B 14 2B sensor system fault adjusted (these faults will only S3A 15 3A sensor system fault occur at speeds greater than sixS3B 16 3B sensor system fault mph). Measure the AC voltage atEXC 20 Incorrect exciter type the sensor in question while

rotating the wheel at a rate of aboutone revolution every two seconds.The output should be at least 200millivolts. If this is not the case,push in the sensor until it touchesthe exciter and rotate the wheel again. If this doesn’t correct theproblem, then the sensor shouldbe replaced.

NOTE: The codes listed here are indications of where to start your diagnostic investigation, NOT adirection to necessarily replace the part(s) affected. Simple electronic tests (ie. continuity and ohmsresistance checks) will help pinpoint the problem.

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POSSIBLE CAUSE(S)

INTERMITTENT LOW SENSOR OUTPUT GROUP (Dynamic Codes)

S1A 21 1A sensor system fault Loose sensor, connection, bracketS1B 22 1B sensor system fault or exciter, damaged exciter, sensorS2A 23 2A sensor system fault is not properly adjusted or has worn S2B 24 2B sensor system fault cable insulation, wheel bearingS3A 25 3A sensor system fault failure, wheel bearing is not S3B 26 3B sensor system fault properly adjusted (these faults will

only occur at speeds greater than six mph). Measure the AC voltage at the sensor in question whilerotating the wheel at a rate of aboutone revolution every two seconds.The output should be at least 200millivolts. If this is not the case,push in the sensor until it touchesthe exciter and rotate the wheel again. If this doesn’t correct the problem, then the sensor should be replaced.

OPEN OR SHORT CIRCUIT AUXILIARY CHANNEL GROUP (PLC Plus Only)

CH0 30 Auxiliary channel 0 fault (digital channel 0) Input/Output Analog or digital cable connections,CH1 31 Auxiliary channel 1 fault (digital channel 1) Input/Output Auxiliary box relay failure. Refer toCH2 32 Auxiliary channel 2 fault (digital channel 2) Input/Output ABS Manual L30030HBS to check CH3 33 Auxiliary channel 3 fault (digital channel 3) Input Only ABS Harness.CH4 34 Auxiliary channel 4 fault (analog 1) Input OnlyCH5 35 Auxiliary channel 5 fault (analog 2) Input OnlyEXT 37 Lamp signaled by external device.

ONE WHEEL WITH SLOW RECOVERY GROUP

XSn 40 Sensor wiring crossed across an axle Slow brake release, foundation SLW41 Slow recovery of one wheel of red channel brake mechanical faults, dry SLW42 Slow recovery of one wheel of blue channel bearings, broken spring, restrictedSLW43 Slow recovery of one wheel of yellow channel piping. Modulator fault. Check for

kinks and blockages etc. Incorrectpiping, wiring.

NOTE: The codes listed here are indications of where to start your diagnostic investigation, NOT adirection to necessarily replace the part(s) affected. Simple electronic tests (ie. continuity and ohmsresistance checks) will help pinpoint the problem.

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POSSIBLE CAUSE(S)

MODULATOR SOLENOID WIRING OR SOLENOID OPEN CIRCUIT GROUP

RDH 61 Hold solenoid circuit fault, red channel. Modulator valve solenoid failure,BUH 62 Hold solenoid circuit fault, blue channel. solenoid connection, or valveYEH 63 Hold solenoid circuit fault, yellow channel. cable damage. The most likelyRDD 67 Dump solenoid circuit fault, red channel. causes include: a bad solenoid orBUD 68 Dump solenoid circuit fault, blue channel. a loose solenoid connection.YED 69 Dump solenoid circuit fault, yellow channel. Disconnect the indicated solenoid

and check the resistance at thesolenoid pins. Readings across the two bottom pins should bebetween 7 and 9 ohms. Check the female terminals on theconnector for excessive pin spreador corrosion. Replace defectivehardware as required and retest.Refer to ABS Manual L30030HBSto check ABS Harness.

MODULATOR SOLENOID WIRING OR SOLENOID SHORT TO B- GROUP

RDH 71 Hold solenoid circuit fault, red channel. Modulator valve solenoid failure,BUH 72 Hold solenoid circuit fault, blue channel. or valve cable damage. The mostYEH 73 Hold solenoid circuit fault, yellow channel. likely causes include: a damagedRDD 77 Dump solenoid circuit fault, red channel. cable or solenoid. An example ofBUD 78 Dump solenoid circuit fault, blue channel. this is a worn or chafed cable thatYED 79 Dump solenoid circuit fault, yellow channel. has exposed wires contacting the

trailer. Disconnect the indicatedsolenoid and check the resistanceat the cable end of solenoid. Readings from each bottom pinto ground should be open circuit.Disconnect the solenoid connectorand check for continuity betweeneach solenoid terminal and trailerground. Replace defectivehardware as required and retest.Refer to ABS Manual L30030HBSto check ABS Harness.

NOTE: The codes listed here are indications of where to start your diagnostic investigation, NOT adirection to necessarily replace the part(s) affected. Simple electronic tests (ie. continuity and ohmsresistance checks) will help pinpoint the problem.

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POSSIBLE CAUSE(S)

MODULATOR SOLENOID WIRING OR SOLENOID SHORT TO B+ GROUP

SOL 80 Poor insulation in the modulator solenoid Modulator valve solenoid failureor wiring fault or valve cable damage. Indicates

RDH 81 Hold solenoid circuit fault, red channel that the solenoid or its cable has aBUH 82 Hold solenoid circuit fault, blue channel short circuit to B+ (positive 12 YEH 83 Hold solenoid circuit fault, yellow channel volts). The most likely cause is aRDD 87 Dump solenoid circuit fault, red channel damaged cable or solenoid.BUD 88 Dump solenoid circuit fault, blue channel Disconnect the indicated solenoidYED 89 Dump solenoid circuit fault, yellow channel and check the resistance at the

cable end at solenoid. Readingsfrom each bottom pin to B+ shouldbe an open circuit. Refer to ABSManual L30030HBS to check ABSHarness.

SUPPLY VOLTAGE GROUP

BLO 90 Supply voltage at ECU less than 9V when a Verify +12V dc power source.solenoid is energized DO NOT USE BATTERY

ISO 91 Faulty supply from ISO 7638 Pin 1 or fuse blown CHARGER AS POWER SUPPLY.BHI 92 Supply voltage at the ECU greater than 16V

ECU 93 Internal ECU fault ECU failure.ECU 99 Internal ECU faultECU 9A Internal ECU fault

SYSTEM FUNCTION GROUP

NLV A4 No load sensing valve installedSLH A5 Select Low High Channel 1SLH A6 Select Low High Channel 2 (blue)SLH A7 Select Low High Channel 3 (2S/1M; red)

(4S/2M; yellow)SLH A8 Modified Select Low High (2S/1M; red)

(4S/2M; yellow)

NOTE: The codes listed here are indications of where to start your diagnostic investigation, NOT adirection to necessarily replace the part(s) affected. Simple electronic tests (ie. continuity and ohmsresistance checks) will help pinpoint the problem.

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VARIOUS CODES

CLR CA Erase stored faultsCLR CC Clear configurationCFG CF Sensors and solenoid not connected.

Alternating with Code 90 (incomplete solenoidfunction). Check ECU supply voltage.

COM FAIL Communication failure between ECU and InfoCenter. Verify Pin 7 of J560 has+12 V. Press either button or repower to re-establish communications.

STUCK BT A button is stuck closed. Press either button or repower to re-establish communications.

NOTE: The codes listed here are indications of where to start your diagnostic investigation, NOT adirection to necessarily replace the part(s) affected. Simple electronic tests (ie. continuity and ohmsresistance checks) will help pinpoint the problem.

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* Factory Tire Scale Set At 502 Rev/Mile.

USEFUL NUMBERS: 1 mile = 1.6093 km 1 km = 0.6214 mile

SCALE FACTOR (SF) FOR OTHER TIRE SIZES:

OPTION 1: SF = (1000/Rc) x (T/100) OPTION 2: SF = N x (T/100)Rc = Rolling Circumference in meters N = Revolutions per mileT = Exciter actual tooth count T = Exciter actual tooth count

TrailerTire

ScalingFactor

100T (miles)

ScalingFactor

100T (km)

ScalingFactor

80T (miles)

ScalingFactor

80T (km)80T Smallest Tire 579 360215/75R17.5 543 3388R17.5 538 334275/65R17.5HC 527 3288.5R17.5 524 326245/70R17.5 523 325235/75R17.5 523 325225/70R19.5 521 3248.25R15 495 3089R17.5HC 495 30810R17.5 490 304265/70R19.5 483 300285/70R19.5 470 293100T Smallest Tire 580 360305/70R19.5 574 357 459 28611R17.5HC 568 353 454 28310.00R15TR 566 352 453 282255/70R22.5 566 352 453 282275/70R22.5 545 339 436 27110R22.5 520 323 416 2599.00R20 519 323 415 258295/75R22.5 518 322 414 258285/75R24.5 504 313 403 251295/80R22.5 503 313 402 25011R22.5 502* 313 402 25010.00R20 501 312 401 249315/80R22.5 491 305 383 24480T Largest Tire 391 24311.00R20 488 303305/75R24.5 488 30311R24.5 478 29710.00R22 478 29712.00R20 472 294425/65R22.5 471 29311.00R22 466 290100T Largest Tire 391 243

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First screen displaysInfoCenter type:PLC InfoCenter.

Next screen displaysABS Sensor/ValveConfiguration: C0 2S/1M (equals twosensors/one valve)

Next screen displays:NLV A4 Auxiliary Code A4.

Next screen displays:SLH A7 or A8. AuxiliaryCodes A7 or A8.

If powers up to an 07code, vehicle is stationary. ABS is fullyoperational. If trailerABS lamp is still ON,check stored faults. (SeePages 1-5 for complete fault code list.)

If fault code is present,the display will power upto the active fault code(See Pages 1-5 for complete fault code list.) An activefault code and a flashingwrench will be displayed.

If COM FAIL is displayed, the ABS system is not poweredup or only powered by stoplight power.

Next screen displays anall Segment DisplayTest.

Next screen displaysABS type: PLC, PLC SLCT or PLC Plus ABS.

-OR--OR-

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From the active faultscreen, CODE 07, vehicle is stationary ABS is fully operational.

After clearing storedfaults, the displayreturns to the active fault screen.

If display is other than 07, reference Pages 1-5. Repair, re-power and clear stored faults again.

The first stored fault isdisplayed. Example: 67 fault, occurred 1time. If OK 00 is displayed, no storedfaults are present.

Hold right button twoseconds until BUSY isdisplayed.

Repeat right button holdfor next stored fault. Example: 61 fault,occurred 2 times.Repeat right button holdfor two seconds untilBUSY is displayed.

The next stored fault isdisplayed. Example: 01fault, occurred 3 times.Repeat right button hold for two seconds untilBUSY is displayed.

Repeat right button holdand record all storedfaults until CLR? CA is displayed.

Repeat right button holdto clear stored faultcodes. Otherwise waitto return to the activefault screen.

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From the active faultscreen, Code 07, vehicle is stationary;ABS is fully operational.

Rotate the wheel withsensor 1B (1 Rev/2 Sec)four seconds minimum.1B will remain displayed.

Upon rotation of a wheel, the sensor identification is displayed. The display will remain on until rotation ofanother wheel. If no sensor identification is displayed, verify sensor connection and sensor/exciter align-ment.

SENSOR IDENTIFICATION1A 1B2A 2B

2A 2B 3A 3B

Rotate the wheel withsensor 1A (1 Rev/2 Sec)four seconds minimum.1A will remain displayed.

ABS CONFIGURATION2 Sensors/1 Modulator Valve (2S/1M)2 Sensors / 2 Modulator Valves (2S/2M)4 Sensors / 2 Modulators Valves (4S/2M)

Press the right button todisplay WHEEL.

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From the active faultscreen, CODE 07, vehicle is stationary; ABS is fully operational.

Press the left button todisplay the odometer.Example: 18.7 miles

Press the left button again to display distanceto service.Example: 123,000.0miles

Press the left buttonagain to display theservice interval.Example: SI 123 SI is 123,000 miles

Press the left buttonagain to display the tirescale factor.Example: 502 rev/mile

Press the left buttonagain to return to theodometer.Example: 18.7 miles

Press the left buttonagain to display trip distance. Example: 1.6 miles

From the active faultscreen, CODE 07, vehicle is stationary;

ABS is fully operational.

Infocenter - Clear Trip Distance

Press the left button todisplay the odometer.Example: 18.7 miles

Hold the right button two seconds to clear the trip distance to0.0 miles.

Press the left buttonagain to display trip distance. Example: 1.6 miles

InfoCenter - Odometer InformationPLC, PLC Plus, & PLC Select

Permanent power must be available to the trailer ABS for the odometer to be accurate.

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From the active faultscreen, CODE 07, vehicle is stationary; ABS is fully operational.

Refer to the Tire Scaling Factor Chart on Page 6 to choose the correct rev/mile for your tire size.

Press the left buttonagain to display distance to service.Example: 123,000.0miles

Press the left button again to display tripdistance.Example: 1.6 miles

Press the left button todisplay the odometer.Example: 18.7 miles

Press the left buttonagain to display theservice interval. Example: SI 123 (thousands)

Press the left button toadvance to the nextdigit. Repeat for allthree digits.(thousands)

Press the left buttonagain to display tirescale factor.Example: 502 rev/mile

Hold the right button fortwo seconds. The firstdigit will begin flashing.

Press the right button toset the first digit (0 - 9).

After setting all three digits and the mile or km icon.hold the right button for two seconds until BUSY isdisplayed. The Tire Scale Factor is now set.Example: 625 rev/mile.

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Press the left button again to display tripdistance.Example: 1.6 miles

From the active faultscreen, CODE 07, vehicle is stationary; ABS is fully operational.

The Service Maintenance Interval is the distance traveled before service is due.Example: SI 123 = 123,000.0 miles.

Press the left buttonagain to display serviceinterval. Example: 000

Hold the right button fortwo seconds. The firstdigit will begin flashing.

Press the left buttonagain to display the tirescale factor.

Press the right button toset the first digit (0 - 9).Service Interval is in1,000 mile increments.Example:100 =100,000 miles

Press the left buttonagain to display distance to service.Example: 0.0 miles

Press the left button again to display tripdistance.Example: 1.6 miles

Press the left button todisplay the odometer.Example: 18.7 miles

The left button advancesto the next digit. Repeatfor all three digits.

After setting all threedigits, hold the right button for two secondsuntil BUSY is displayed.Service Interval is set to

123 = 123,000.0 miles.

Press the left button todisplay the odometer.Example: 18.7 miles

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Distance to Service isnow set to 123,000.0miles.

Press the left buttonagain to display distance to service.Example: 0.0 miles

Hold the right button fortwo seconds. ServiceInterval = 123(123,000.0 miles)

Hold the right button fortwo seconds until BUSYis displayed to set thedistance to service to123,000 miles.

The Distance to Service is the Service Interval Counting Down. Once it reaches zero, service isrequired. The Trailer ABS Warning Lamp will flash three times on power up until distance to service is set again or until a new service interval is set.

InfoCenter - Set The Service Maintenance Interval (cont’d)PLC, PLC Plus, & PLC Select

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From the active faultscreen, CODE 07, vehicle is stationary ABS is fully operational.

Press the left buttonagain to view Sensor/Valve ABS configuration.Example: C2 = 4S/2M(4 Sensors/2 ModulatorValves)

Press the left buttonagain to view AuxiliaryCode A4.

Press the left buttonagain to return to ECUSerial Number.

Press the left buttonagain to view AuxiliaryCode A7.

Press the right buttonagain to display theECU Serial Number.

Press the right button todisplay WHEEL.

Press the left button toview ABS Type “PLC”,“PLC SLCT” or “PLCPLUS”.

Press the left buttonagain to view InfoCenterSoftware Version.Example: Version 3.9

Press the left buttonagain to view segmentdisplay test.

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From the active faultscreen, Code 07, vehicle is stationary;ABS is fully operational.

2S/2M and 4S/2M Applications: If multiple Modulator Valves are used, the Blue and Yellow Channelsare displayed for testing.

After the valve is tested,the ABS will not be functional. Re-powerthe ABS System.

Hold the right button fortwo seconds. Requestto test the red valvechannel. (Red if 2S/1M)

Press the left button todisplay VLV TEST.

Press the right button todisplay WHEEL.

Press the right buttonuntil BUSY is displayed.The red channel valve isenergized. The ABSWarning Lamp will beginto flash.

InfoCenter - Modulator Valve Test (2S/1M Application)PLC, PLC Plus, & PLC Select

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From the active faultscreen, CODE 07, vehicle is stationary; ABS is fully operational.

If the ABS has no TrailerAuxiliaries, the CABLAMP menu will be displayed.

With CAB LAMPdisplayed, press theright button until BUSYis displayed.

The in-cab Trailer ABSWarning Lamp is turnedON for ten seconds.

This test can only be performed if no active faults are present on the trailer ABS System and the iin-cab trailer ABS Warning Lamp is OFF.

Press the left buttonagain. If the ABS hasTrailer Auxiliaries, TRLR AUX menu will be displayed.

Press the left button todisplay VLV TEST.

Press the right button todisplay WHEEL.

The display returns to CAB LAMP.Press the right button to repeat thein-cab lamp test. Press the left button to return to display WHEEL.

-OR-

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* Power supply or battery cable . . . . . . . . . . . . . . Included with InfoCenter Kit AQ15849* Cigarette lighter plug adapter. . . . . . . . . . . . . . . . . Optional (Part Number AL2030012)

* J560 (7-Way) Diagnostic Interface Cable Adapter . . Optional (Part Number AL230010)

Use the InfoCenter as a handheld diagnostic tool or an in-cab trailer auxiliarytool using InfoCenter Kit AQ15849. Use the InfoCenter as a handheld diagnostic tool or asan in-cab trailer auxiliary tool to monitor or control devices on the trailer. Pictured below are theoptional cable adapters available for vehicle interface. This InfoCenter does not contain an internalbattery for maintaining memory and therefore requires vehicle power to operate.

PLC Diagnostic Interface Options for Vehicles Manufactured After March 1, 2001

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NotesPLC, PLC Plus, & PLC Select

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North American Sales DivisionHaldex Limited

525 Southgate Drive, Unit 1Guelph, Ontario CANADA N1G 3W6

Phone: 519-826-7723Fax: 519-826-9497

North American Sales DivisionHaldex Brake Products Corporation

10707 NW Airworld DriveKansas City, MO 64153-1215

Phone: 816-891-2470Fax: 816-880-9766

www.haldex.com - www.hbsna.com

6/03 5M CM L30030 (last revised 6/02)